Home / 15,657.76-23,464.48-8,247.20

Finding the Fourth Proportional to 15,657.76, 23,464.48 and 8,247.20

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Solution

The fourth proportional to 15,657.76, 23,464.48 and 8,247.20 is: 12,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.76 : 23,464.48 = 8,247.20 : x
  2. Step 2: Convert to fraction form
    15,657.76/23,464.48 = 8,247.20/x
  3. Step 3: Cross multiply
    15,657.76x = 23,464.48 × 8,247.20
  4. Step 4: Simplify right side
    15,657.76x = 193,516,259.46
  5. Step 5: Solve for x
    x = 193,516,259.46/15,657.76
  6. Step 6: Final answer
    x = 12,359.13

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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.