Home / 8,215.53-11,337.47-4,678.66

Finding the Fourth Proportional to 8,215.53, 11,337.47 and 4,678.66

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Solution

The fourth proportional to 8,215.53, 11,337.47 and 4,678.66 is: 6,456.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.53 : 11,337.47 = 4,678.66 : x
  2. Step 2: Convert to fraction form
    8,215.53/11,337.47 = 4,678.66/x
  3. Step 3: Cross multiply
    8,215.53x = 11,337.47 × 4,678.66
  4. Step 4: Simplify right side
    8,215.53x = 53,044,175.71
  5. Step 5: Solve for x
    x = 53,044,175.71/8,215.53
  6. Step 6: Final answer
    x = 6,456.58

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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.