Home / 12,261.17-16,900.19-8,671.49

Finding the Fourth Proportional to 12,261.17, 16,900.19 and 8,671.49

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Solution

The fourth proportional to 12,261.17, 16,900.19 and 8,671.49 is: 11,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.17 : 16,900.19 = 8,671.49 : x
  2. Step 2: Convert to fraction form
    12,261.17/16,900.19 = 8,671.49/x
  3. Step 3: Cross multiply
    12,261.17x = 16,900.19 × 8,671.49
  4. Step 4: Simplify right side
    12,261.17x = 146,549,700.72
  5. Step 5: Solve for x
    x = 146,549,700.72/12,261.17
  6. Step 6: Final answer
    x = 11,952.35

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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.