Home / 16,867.88-23,278.42-9,700.12

Finding the Fourth Proportional to 16,867.88, 23,278.42 and 9,700.12

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Solution

The fourth proportional to 16,867.88, 23,278.42 and 9,700.12 is: 13,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,867.88 : 23,278.42 = 9,700.12 : x
  2. Step 2: Convert to fraction form
    16,867.88/23,278.42 = 9,700.12/x
  3. Step 3: Cross multiply
    16,867.88x = 23,278.42 × 9,700.12
  4. Step 4: Simplify right side
    16,867.88x = 225,803,508.63
  5. Step 5: Solve for x
    x = 225,803,508.63/16,867.88
  6. Step 6: Final answer
    x = 13,386.60

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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.