Home / 15,385.18-23,079.50-4,856.70

Finding the Fourth Proportional to 15,385.18, 23,079.50 and 4,856.70

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Solution

The fourth proportional to 15,385.18, 23,079.50 and 4,856.70 is: 7,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.18 : 23,079.50 = 4,856.70 : x
  2. Step 2: Convert to fraction form
    15,385.18/23,079.50 = 4,856.70/x
  3. Step 3: Cross multiply
    15,385.18x = 23,079.50 × 4,856.70
  4. Step 4: Simplify right side
    15,385.18x = 112,090,207.65
  5. Step 5: Solve for x
    x = 112,090,207.65/15,385.18
  6. Step 6: Final answer
    x = 7,285.60

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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.