Home / 14,214.42-19,615.84-7,840.84

Finding the Fourth Proportional to 14,214.42, 19,615.84 and 7,840.84

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Solution

The fourth proportional to 14,214.42, 19,615.84 and 7,840.84 is: 10,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.42 : 19,615.84 = 7,840.84 : x
  2. Step 2: Convert to fraction form
    14,214.42/19,615.84 = 7,840.84/x
  3. Step 3: Cross multiply
    14,214.42x = 19,615.84 × 7,840.84
  4. Step 4: Simplify right side
    14,214.42x = 153,804,662.91
  5. Step 5: Solve for x
    x = 153,804,662.91/14,214.42
  6. Step 6: Final answer
    x = 10,820.33

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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.