Home / 8,977.20-12,389.67-5,000.10

Finding the Fourth Proportional to 8,977.20, 12,389.67 and 5,000.10

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Solution

The fourth proportional to 8,977.20, 12,389.67 and 5,000.10 is: 6,900.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.20 : 12,389.67 = 5,000.10 : x
  2. Step 2: Convert to fraction form
    8,977.20/12,389.67 = 5,000.10/x
  3. Step 3: Cross multiply
    8,977.20x = 12,389.67 × 5,000.10
  4. Step 4: Simplify right side
    8,977.20x = 61,949,588.97
  5. Step 5: Solve for x
    x = 61,949,588.97/8,977.20
  6. Step 6: Final answer
    x = 6,900.77

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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.