Home / 10,285.74-15,429.42-3,712.59

Finding the Fourth Proportional to 10,285.74, 15,429.42 and 3,712.59

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Solution

The fourth proportional to 10,285.74, 15,429.42 and 3,712.59 is: 5,569.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.74 : 15,429.42 = 3,712.59 : x
  2. Step 2: Convert to fraction form
    10,285.74/15,429.42 = 3,712.59/x
  3. Step 3: Cross multiply
    10,285.74x = 15,429.42 × 3,712.59
  4. Step 4: Simplify right side
    10,285.74x = 57,283,110.40
  5. Step 5: Solve for x
    x = 57,283,110.40/10,285.74
  6. Step 6: Final answer
    x = 5,569.18

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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.