Home / 15,178.20-22,767.30-9,929.40

Finding the Fourth Proportional to 15,178.20, 22,767.30 and 9,929.40

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Solution

The fourth proportional to 15,178.20, 22,767.30 and 9,929.40 is: 14,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.20 : 22,767.30 = 9,929.40 : x
  2. Step 2: Convert to fraction form
    15,178.20/22,767.30 = 9,929.40/x
  3. Step 3: Cross multiply
    15,178.20x = 22,767.30 × 9,929.40
  4. Step 4: Simplify right side
    15,178.20x = 226,065,628.62
  5. Step 5: Solve for x
    x = 226,065,628.62/15,178.20
  6. Step 6: Final answer
    x = 14,894.10

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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.