Home / 10,042.21-13,857.86-5,565.85

Finding the Fourth Proportional to 10,042.21, 13,857.86 and 5,565.85

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Solution

The fourth proportional to 10,042.21, 13,857.86 and 5,565.85 is: 7,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,042.21 : 13,857.86 = 5,565.85 : x
  2. Step 2: Convert to fraction form
    10,042.21/13,857.86 = 5,565.85/x
  3. Step 3: Cross multiply
    10,042.21x = 13,857.86 × 5,565.85
  4. Step 4: Simplify right side
    10,042.21x = 77,130,700.79
  5. Step 5: Solve for x
    x = 77,130,700.79/10,042.21
  6. Step 6: Final answer
    x = 7,680.65

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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.