Home / 8,721.92-12,030.09-5,366.58

Finding the Fourth Proportional to 8,721.92, 12,030.09 and 5,366.58

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Solution

The fourth proportional to 8,721.92, 12,030.09 and 5,366.58 is: 7,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.92 : 12,030.09 = 5,366.58 : x
  2. Step 2: Convert to fraction form
    8,721.92/12,030.09 = 5,366.58/x
  3. Step 3: Cross multiply
    8,721.92x = 12,030.09 × 5,366.58
  4. Step 4: Simplify right side
    8,721.92x = 64,560,454.27
  5. Step 5: Solve for x
    x = 64,560,454.27/8,721.92
  6. Step 6: Final answer
    x = 7,402.10

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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.