Home / 15,245.52-21,038.34-8,531.70

Finding the Fourth Proportional to 15,245.52, 21,038.34 and 8,531.70

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Solution

The fourth proportional to 15,245.52, 21,038.34 and 8,531.70 is: 11,773.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,245.52 : 21,038.34 = 8,531.70 : x
  2. Step 2: Convert to fraction form
    15,245.52/21,038.34 = 8,531.70/x
  3. Step 3: Cross multiply
    15,245.52x = 21,038.34 × 8,531.70
  4. Step 4: Simplify right side
    15,245.52x = 179,492,805.38
  5. Step 5: Solve for x
    x = 179,492,805.38/15,245.52
  6. Step 6: Final answer
    x = 11,773.48

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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.