Home / 15,702.48-21,666.96-8,986.56

Finding the Fourth Proportional to 15,702.48, 21,666.96 and 8,986.56

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Solution

The fourth proportional to 15,702.48, 21,666.96 and 8,986.56 is: 12,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.48 : 21,666.96 = 8,986.56 : x
  2. Step 2: Convert to fraction form
    15,702.48/21,666.96 = 8,986.56/x
  3. Step 3: Cross multiply
    15,702.48x = 21,666.96 × 8,986.56
  4. Step 4: Simplify right side
    15,702.48x = 194,711,436.06
  5. Step 5: Solve for x
    x = 194,711,436.06/15,702.48
  6. Step 6: Final answer
    x = 12,400.04

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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.