Home / 15,385.80-23,060.70-8,818.20

Finding the Fourth Proportional to 15,385.80, 23,060.70 and 8,818.20

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Solution

The fourth proportional to 15,385.80, 23,060.70 and 8,818.20 is: 13,216.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.80 : 23,060.70 = 8,818.20 : x
  2. Step 2: Convert to fraction form
    15,385.80/23,060.70 = 8,818.20/x
  3. Step 3: Cross multiply
    15,385.80x = 23,060.70 × 8,818.20
  4. Step 4: Simplify right side
    15,385.80x = 203,353,864.74
  5. Step 5: Solve for x
    x = 203,353,864.74/15,385.80
  6. Step 6: Final answer
    x = 13,216.98

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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.