Home / 10,356.89-15,535.34-2,565.71

Finding the Fourth Proportional to 10,356.89, 15,535.34 and 2,565.71

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Solution

The fourth proportional to 10,356.89, 15,535.34 and 2,565.71 is: 3,848.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.89 : 15,535.34 = 2,565.71 : x
  2. Step 2: Convert to fraction form
    10,356.89/15,535.34 = 2,565.71/x
  3. Step 3: Cross multiply
    10,356.89x = 15,535.34 × 2,565.71
  4. Step 4: Simplify right side
    10,356.89x = 39,859,177.19
  5. Step 5: Solve for x
    x = 39,859,177.19/10,356.89
  6. Step 6: Final answer
    x = 3,848.57

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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.