Home / 10,041.40-13,857.87-5,565.55

Finding the Fourth Proportional to 10,041.40, 13,857.87 and 5,565.55

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Solution

The fourth proportional to 10,041.40, 13,857.87 and 5,565.55 is: 7,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,041.40 : 13,857.87 = 5,565.55 : x
  2. Step 2: Convert to fraction form
    10,041.40/13,857.87 = 5,565.55/x
  3. Step 3: Cross multiply
    10,041.40x = 13,857.87 × 5,565.55
  4. Step 4: Simplify right side
    10,041.40x = 77,126,668.38
  5. Step 5: Solve for x
    x = 77,126,668.38/10,041.40
  6. Step 6: Final answer
    x = 7,680.87

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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.