Home / 10,149.81-15,187.35-8,931.92

Finding the Fourth Proportional to 10,149.81, 15,187.35 and 8,931.92

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Solution

The fourth proportional to 10,149.81, 15,187.35 and 8,931.92 is: 13,365.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.81 : 15,187.35 = 8,931.92 : x
  2. Step 2: Convert to fraction form
    10,149.81/15,187.35 = 8,931.92/x
  3. Step 3: Cross multiply
    10,149.81x = 15,187.35 × 8,931.92
  4. Step 4: Simplify right side
    10,149.81x = 135,652,187.96
  5. Step 5: Solve for x
    x = 135,652,187.96/10,149.81
  6. Step 6: Final answer
    x = 13,365.00

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1.5x scale

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.