Home / 11,225.87-15,497.30-8,702.31

Finding the Fourth Proportional to 11,225.87, 15,497.30 and 8,702.31

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Solution

The fourth proportional to 11,225.87, 15,497.30 and 8,702.31 is: 12,013.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225.87 : 15,497.30 = 8,702.31 : x
  2. Step 2: Convert to fraction form
    11,225.87/15,497.30 = 8,702.31/x
  3. Step 3: Cross multiply
    11,225.87x = 15,497.30 × 8,702.31
  4. Step 4: Simplify right side
    11,225.87x = 134,862,308.76
  5. Step 5: Solve for x
    x = 134,862,308.76/11,225.87
  6. Step 6: Final answer
    x = 12,013.53

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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.