Home / 8,938.56-13,405.68-5,647.92

Finding the Fourth Proportional to 8,938.56, 13,405.68 and 5,647.92

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Solution

The fourth proportional to 8,938.56, 13,405.68 and 5,647.92 is: 8,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.56 : 13,405.68 = 5,647.92 : x
  2. Step 2: Convert to fraction form
    8,938.56/13,405.68 = 5,647.92/x
  3. Step 3: Cross multiply
    8,938.56x = 13,405.68 × 5,647.92
  4. Step 4: Simplify right side
    8,938.56x = 75,714,208.19
  5. Step 5: Solve for x
    x = 75,714,208.19/8,938.56
  6. Step 6: Final answer
    x = 8,470.52

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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.