Home / 15,402.28-21,260.46-9,114.34

Finding the Fourth Proportional to 15,402.28, 21,260.46 and 9,114.34

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Solution

The fourth proportional to 15,402.28, 21,260.46 and 9,114.34 is: 12,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402.28 : 21,260.46 = 9,114.34 : x
  2. Step 2: Convert to fraction form
    15,402.28/21,260.46 = 9,114.34/x
  3. Step 3: Cross multiply
    15,402.28x = 21,260.46 × 9,114.34
  4. Step 4: Simplify right side
    15,402.28x = 193,775,061.00
  5. Step 5: Solve for x
    x = 193,775,061.00/15,402.28
  6. Step 6: Final answer
    x = 12,580.93

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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.