Home / 12,442.16-18,663.28-8,534.72

Finding the Fourth Proportional to 12,442.16, 18,663.28 and 8,534.72

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Solution

The fourth proportional to 12,442.16, 18,663.28 and 8,534.72 is: 12,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.16 : 18,663.28 = 8,534.72 : x
  2. Step 2: Convert to fraction form
    12,442.16/18,663.28 = 8,534.72/x
  3. Step 3: Cross multiply
    12,442.16x = 18,663.28 × 8,534.72
  4. Step 4: Simplify right side
    12,442.16x = 159,285,869.08
  5. Step 5: Solve for x
    x = 159,285,869.08/12,442.16
  6. Step 6: Final answer
    x = 12,802.11

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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.