Home / 8,979.18-12,391.02-5,000.10

Finding the Fourth Proportional to 8,979.18, 12,391.02 and 5,000.10

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Solution

The fourth proportional to 8,979.18, 12,391.02 and 5,000.10 is: 6,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.18 : 12,391.02 = 5,000.10 : x
  2. Step 2: Convert to fraction form
    8,979.18/12,391.02 = 5,000.10/x
  3. Step 3: Cross multiply
    8,979.18x = 12,391.02 × 5,000.10
  4. Step 4: Simplify right side
    8,979.18x = 61,956,339.10
  5. Step 5: Solve for x
    x = 61,956,339.10/8,979.18
  6. Step 6: Final answer
    x = 6,900.00

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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.