Home / 15,290.10-21,099.96-8,575.74

Finding the Fourth Proportional to 15,290.10, 21,099.96 and 8,575.74

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Solution

The fourth proportional to 15,290.10, 21,099.96 and 8,575.74 is: 11,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.10 : 21,099.96 = 8,575.74 : x
  2. Step 2: Convert to fraction form
    15,290.10/21,099.96 = 8,575.74/x
  3. Step 3: Cross multiply
    15,290.10x = 21,099.96 × 8,575.74
  4. Step 4: Simplify right side
    15,290.10x = 180,947,770.97
  5. Step 5: Solve for x
    x = 180,947,770.97/15,290.10
  6. Step 6: Final answer
    x = 11,834.31

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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.