Home / 8,721.52-12,034.38-5,364.88

Finding the Fourth Proportional to 8,721.52, 12,034.38 and 5,364.88

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Solution

The fourth proportional to 8,721.52, 12,034.38 and 5,364.88 is: 7,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.52 : 12,034.38 = 5,364.88 : x
  2. Step 2: Convert to fraction form
    8,721.52/12,034.38 = 5,364.88/x
  3. Step 3: Cross multiply
    8,721.52x = 12,034.38 × 5,364.88
  4. Step 4: Simplify right side
    8,721.52x = 64,563,004.57
  5. Step 5: Solve for x
    x = 64,563,004.57/8,721.52
  6. Step 6: Final answer
    x = 7,402.72

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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.