Home / 15,138.30-22,708.02-6,816.72

Finding the Fourth Proportional to 15,138.30, 22,708.02 and 6,816.72

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Solution

The fourth proportional to 15,138.30, 22,708.02 and 6,816.72 is: 10,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.30 : 22,708.02 = 6,816.72 : x
  2. Step 2: Convert to fraction form
    15,138.30/22,708.02 = 6,816.72/x
  3. Step 3: Cross multiply
    15,138.30x = 22,708.02 × 6,816.72
  4. Step 4: Simplify right side
    15,138.30x = 154,794,214.09
  5. Step 5: Solve for x
    x = 154,794,214.09/15,138.30
  6. Step 6: Final answer
    x = 10,225.34

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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.