Home / 14,750.16-20,358.18-8,785.32

Finding the Fourth Proportional to 14,750.16, 20,358.18 and 8,785.32

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Solution

The fourth proportional to 14,750.16, 20,358.18 and 8,785.32 is: 12,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.16 : 20,358.18 = 8,785.32 : x
  2. Step 2: Convert to fraction form
    14,750.16/20,358.18 = 8,785.32/x
  3. Step 3: Cross multiply
    14,750.16x = 20,358.18 × 8,785.32
  4. Step 4: Simplify right side
    14,750.16x = 178,853,125.92
  5. Step 5: Solve for x
    x = 178,853,125.92/14,750.16
  6. Step 6: Final answer
    x = 12,125.50

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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.