Home / 10,140.42-15,210.64-3,565.08

Finding the Fourth Proportional to 10,140.42, 15,210.64 and 3,565.08

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Solution

The fourth proportional to 10,140.42, 15,210.64 and 3,565.08 is: 5,347.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.42 : 15,210.64 = 3,565.08 : x
  2. Step 2: Convert to fraction form
    10,140.42/15,210.64 = 3,565.08/x
  3. Step 3: Cross multiply
    10,140.42x = 15,210.64 × 3,565.08
  4. Step 4: Simplify right side
    10,140.42x = 54,227,132.85
  5. Step 5: Solve for x
    x = 54,227,132.85/10,140.42
  6. Step 6: Final answer
    x = 5,347.62

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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.