Home / 12,117.80-16,714.26-11,711.48

Finding the Fourth Proportional to 12,117.80, 16,714.26 and 11,711.48

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Solution

The fourth proportional to 12,117.80, 16,714.26 and 11,711.48 is: 16,153.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.80 : 16,714.26 = 11,711.48 : x
  2. Step 2: Convert to fraction form
    12,117.80/16,714.26 = 11,711.48/x
  3. Step 3: Cross multiply
    12,117.80x = 16,714.26 × 11,711.48
  4. Step 4: Simplify right side
    12,117.80x = 195,748,721.70
  5. Step 5: Solve for x
    x = 195,748,721.70/12,117.80
  6. Step 6: Final answer
    x = 16,153.82

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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.