Home / 8,123.61-11,210.56-4,397.61

Finding the Fourth Proportional to 8,123.61, 11,210.56 and 4,397.61

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Solution

The fourth proportional to 8,123.61, 11,210.56 and 4,397.61 is: 6,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.61 : 11,210.56 = 4,397.61 : x
  2. Step 2: Convert to fraction form
    8,123.61/11,210.56 = 4,397.61/x
  3. Step 3: Cross multiply
    8,123.61x = 11,210.56 × 4,397.61
  4. Step 4: Simplify right side
    8,123.61x = 49,299,670.76
  5. Step 5: Solve for x
    x = 49,299,670.76/8,123.61
  6. Step 6: Final answer
    x = 6,068.69

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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.