Home / 10,871.68-15,002.84-6,155.92

Finding the Fourth Proportional to 10,871.68, 15,002.84 and 6,155.92

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Solution

The fourth proportional to 10,871.68, 15,002.84 and 6,155.92 is: 8,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.68 : 15,002.84 = 6,155.92 : x
  2. Step 2: Convert to fraction form
    10,871.68/15,002.84 = 6,155.92/x
  3. Step 3: Cross multiply
    10,871.68x = 15,002.84 × 6,155.92
  4. Step 4: Simplify right side
    10,871.68x = 92,356,282.81
  5. Step 5: Solve for x
    x = 92,356,282.81/10,871.68
  6. Step 6: Final answer
    x = 8,495.13

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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.