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Finding the Fourth Proportional to 12,281.04, 16,943.52 and 9,449.28

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Solution

The fourth proportional to 12,281.04, 16,943.52 and 9,449.28 is: 13,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.04 : 16,943.52 = 9,449.28 : x
  2. Step 2: Convert to fraction form
    12,281.04/16,943.52 = 9,449.28/x
  3. Step 3: Cross multiply
    12,281.04x = 16,943.52 × 9,449.28
  4. Step 4: Simplify right side
    12,281.04x = 160,104,064.67
  5. Step 5: Solve for x
    x = 160,104,064.67/12,281.04
  6. Step 6: Final answer
    x = 13,036.69

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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.