Home / 8,778.13-12,113.81-5,054.29

Finding the Fourth Proportional to 8,778.13, 12,113.81 and 5,054.29

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Solution

The fourth proportional to 8,778.13, 12,113.81 and 5,054.29 is: 6,974.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.13 : 12,113.81 = 5,054.29 : x
  2. Step 2: Convert to fraction form
    8,778.13/12,113.81 = 5,054.29/x
  3. Step 3: Cross multiply
    8,778.13x = 12,113.81 × 5,054.29
  4. Step 4: Simplify right side
    8,778.13x = 61,226,708.74
  5. Step 5: Solve for x
    x = 61,226,708.74/8,778.13
  6. Step 6: Final answer
    x = 6,974.91

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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.