Home / 8,721.65-12,036.18-4,743.06

Finding the Fourth Proportional to 8,721.65, 12,036.18 and 4,743.06

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Solution

The fourth proportional to 8,721.65, 12,036.18 and 4,743.06 is: 6,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.65 : 12,036.18 = 4,743.06 : x
  2. Step 2: Convert to fraction form
    8,721.65/12,036.18 = 4,743.06/x
  3. Step 3: Cross multiply
    8,721.65x = 12,036.18 × 4,743.06
  4. Step 4: Simplify right side
    8,721.65x = 57,088,323.91
  5. Step 5: Solve for x
    x = 57,088,323.91/8,721.65
  6. Step 6: Final answer
    x = 6,545.59

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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.