Home / 8,721.77-12,036.28-4,743.16

Finding the Fourth Proportional to 8,721.77, 12,036.28 and 4,743.16

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Solution

The fourth proportional to 8,721.77, 12,036.28 and 4,743.16 is: 6,545.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.77 : 12,036.28 = 4,743.16 : x
  2. Step 2: Convert to fraction form
    8,721.77/12,036.28 = 4,743.16/x
  3. Step 3: Cross multiply
    8,721.77x = 12,036.28 × 4,743.16
  4. Step 4: Simplify right side
    8,721.77x = 57,090,001.84
  5. Step 5: Solve for x
    x = 57,090,001.84/8,721.77
  6. Step 6: Final answer
    x = 6,545.69

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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.