Home / 8,859.20-13,285.60-4,475.20

Finding the Fourth Proportional to 8,859.20, 13,285.60 and 4,475.20

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Solution

The fourth proportional to 8,859.20, 13,285.60 and 4,475.20 is: 6,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.20 : 13,285.60 = 4,475.20 : x
  2. Step 2: Convert to fraction form
    8,859.20/13,285.60 = 4,475.20/x
  3. Step 3: Cross multiply
    8,859.20x = 13,285.60 × 4,475.20
  4. Step 4: Simplify right side
    8,859.20x = 59,455,717.12
  5. Step 5: Solve for x
    x = 59,455,717.12/8,859.20
  6. Step 6: Final answer
    x = 6,711.18

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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.