Home / 10,428.66-15,641.08-4,188.42

Finding the Fourth Proportional to 10,428.66, 15,641.08 and 4,188.42

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Solution

The fourth proportional to 10,428.66, 15,641.08 and 4,188.42 is: 6,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.66 : 15,641.08 = 4,188.42 : x
  2. Step 2: Convert to fraction form
    10,428.66/15,641.08 = 4,188.42/x
  3. Step 3: Cross multiply
    10,428.66x = 15,641.08 × 4,188.42
  4. Step 4: Simplify right side
    10,428.66x = 65,511,412.29
  5. Step 5: Solve for x
    x = 65,511,412.29/10,428.66
  6. Step 6: Final answer
    x = 6,281.86

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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.