Home / 16,040.60-22,135.12-8,870.10

Finding the Fourth Proportional to 16,040.60, 22,135.12 and 8,870.10

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Solution

The fourth proportional to 16,040.60, 22,135.12 and 8,870.10 is: 12,240.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,040.60 : 22,135.12 = 8,870.10 : x
  2. Step 2: Convert to fraction form
    16,040.60/22,135.12 = 8,870.10/x
  3. Step 3: Cross multiply
    16,040.60x = 22,135.12 × 8,870.10
  4. Step 4: Simplify right side
    16,040.60x = 196,340,727.91
  5. Step 5: Solve for x
    x = 196,340,727.91/16,040.60
  6. Step 6: Final answer
    x = 12,240.24

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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.