Home / 10,966.86-15,134.21-5,931.08

Finding the Fourth Proportional to 10,966.86, 15,134.21 and 5,931.08

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Solution

The fourth proportional to 10,966.86, 15,134.21 and 5,931.08 is: 8,184.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,966.86 : 15,134.21 = 5,931.08 : x
  2. Step 2: Convert to fraction form
    10,966.86/15,134.21 = 5,931.08/x
  3. Step 3: Cross multiply
    10,966.86x = 15,134.21 × 5,931.08
  4. Step 4: Simplify right side
    10,966.86x = 89,762,224.66
  5. Step 5: Solve for x
    x = 89,762,224.66/10,966.86
  6. Step 6: Final answer
    x = 8,184.86

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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.