Home / 14,214.05-19,615.47-7,840.87

Finding the Fourth Proportional to 14,214.05, 19,615.47 and 7,840.87

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Solution

The fourth proportional to 14,214.05, 19,615.47 and 7,840.87 is: 10,820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.05 : 19,615.47 = 7,840.87 : x
  2. Step 2: Convert to fraction form
    14,214.05/19,615.47 = 7,840.87/x
  3. Step 3: Cross multiply
    14,214.05x = 19,615.47 × 7,840.87
  4. Step 4: Simplify right side
    14,214.05x = 153,802,212.98
  5. Step 5: Solve for x
    x = 153,802,212.98/14,214.05
  6. Step 6: Final answer
    x = 10,820.44

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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.