Home / 14,214.47-19,615.99-7,840.92

Finding the Fourth Proportional to 14,214.47, 19,615.99 and 7,840.92

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Solution

The fourth proportional to 14,214.47, 19,615.99 and 7,840.92 is: 10,820.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.47 : 19,615.99 = 7,840.92 : x
  2. Step 2: Convert to fraction form
    14,214.47/19,615.99 = 7,840.92/x
  3. Step 3: Cross multiply
    14,214.47x = 19,615.99 × 7,840.92
  4. Step 4: Simplify right side
    14,214.47x = 153,807,339.67
  5. Step 5: Solve for x
    x = 153,807,339.67/14,214.47
  6. Step 6: Final answer
    x = 10,820.48

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.