Home / 15,244.93-21,044.64-9,278.47

Finding the Fourth Proportional to 15,244.93, 21,044.64 and 9,278.47

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Solution

The fourth proportional to 15,244.93, 21,044.64 and 9,278.47 is: 12,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,244.93 : 21,044.64 = 9,278.47 : x
  2. Step 2: Convert to fraction form
    15,244.93/21,044.64 = 9,278.47/x
  3. Step 3: Cross multiply
    15,244.93x = 21,044.64 × 9,278.47
  4. Step 4: Simplify right side
    15,244.93x = 195,262,060.90
  5. Step 5: Solve for x
    x = 195,262,060.90/15,244.93
  6. Step 6: Final answer
    x = 12,808.33

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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.