Home / 15,242.96-21,038.28-9,650

Finding the Fourth Proportional to 15,242.96, 21,038.28 and 9,650

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Solution

The fourth proportional to 15,242.96, 21,038.28 and 9,650 is: 13,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.96 : 21,038.28 = 9,650 : x
  2. Step 2: Convert to fraction form
    15,242.96/21,038.28 = 9,650/x
  3. Step 3: Cross multiply
    15,242.96x = 21,038.28 × 9,650
  4. Step 4: Simplify right side
    15,242.96x = 203,019,402
  5. Step 5: Solve for x
    x = 203,019,402/15,242.96
  6. Step 6: Final answer
    x = 13,318.90

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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.