Home / 19,612.56-29,428.20-9,739.92

Finding the Fourth Proportional to 19,612.56, 29,428.20 and 9,739.92

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Solution

The fourth proportional to 19,612.56, 29,428.20 and 9,739.92 is: 14,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.56 : 29,428.20 = 9,739.92 : x
  2. Step 2: Convert to fraction form
    19,612.56/29,428.20 = 9,739.92/x
  3. Step 3: Cross multiply
    19,612.56x = 29,428.20 × 9,739.92
  4. Step 4: Simplify right side
    19,612.56x = 286,628,313.74
  5. Step 5: Solve for x
    x = 286,628,313.74/19,612.56
  6. Step 6: Final answer
    x = 14,614.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.