Home / 26,190.08-39,281.28-8,660.16

Finding the Fourth Proportional to 26,190.08, 39,281.28 and 8,660.16

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Solution

The fourth proportional to 26,190.08, 39,281.28 and 8,660.16 is: 12,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,190.08 : 39,281.28 = 8,660.16 : x
  2. Step 2: Convert to fraction form
    26,190.08/39,281.28 = 8,660.16/x
  3. Step 3: Cross multiply
    26,190.08x = 39,281.28 × 8,660.16
  4. Step 4: Simplify right side
    26,190.08x = 340,182,169.80
  5. Step 5: Solve for x
    x = 340,182,169.80/26,190.08
  6. Step 6: Final answer
    x = 12,988.97

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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.