Home / 11,580.52-15,981.20-6,275.32

Finding the Fourth Proportional to 11,580.52, 15,981.20 and 6,275.32

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Solution

The fourth proportional to 11,580.52, 15,981.20 and 6,275.32 is: 8,659.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.52 : 15,981.20 = 6,275.32 : x
  2. Step 2: Convert to fraction form
    11,580.52/15,981.20 = 6,275.32/x
  3. Step 3: Cross multiply
    11,580.52x = 15,981.20 × 6,275.32
  4. Step 4: Simplify right side
    11,580.52x = 100,287,186.08
  5. Step 5: Solve for x
    x = 100,287,186.08/11,580.52
  6. Step 6: Final answer
    x = 8,659.99

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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.