Home / 10,339.60-15,498.84-6,631.12

Finding the Fourth Proportional to 10,339.60, 15,498.84 and 6,631.12

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Solution

The fourth proportional to 10,339.60, 15,498.84 and 6,631.12 is: 9,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.60 : 15,498.84 = 6,631.12 : x
  2. Step 2: Convert to fraction form
    10,339.60/15,498.84 = 6,631.12/x
  3. Step 3: Cross multiply
    10,339.60x = 15,498.84 × 6,631.12
  4. Step 4: Simplify right side
    10,339.60x = 102,774,667.90
  5. Step 5: Solve for x
    x = 102,774,667.90/10,339.60
  6. Step 6: Final answer
    x = 9,939.91

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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.