Home / 8,878.18-13,316.29-3,178.92

Finding the Fourth Proportional to 8,878.18, 13,316.29 and 3,178.92

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Solution

The fourth proportional to 8,878.18, 13,316.29 and 3,178.92 is: 4,768.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.18 : 13,316.29 = 3,178.92 : x
  2. Step 2: Convert to fraction form
    8,878.18/13,316.29 = 3,178.92/x
  3. Step 3: Cross multiply
    8,878.18x = 13,316.29 × 3,178.92
  4. Step 4: Simplify right side
    8,878.18x = 42,331,420.61
  5. Step 5: Solve for x
    x = 42,331,420.61/8,878.18
  6. Step 6: Final answer
    x = 4,768.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.