Home / 14,456.40-19,951.56-8,170.80

Finding the Fourth Proportional to 14,456.40, 19,951.56 and 8,170.80

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Solution

The fourth proportional to 14,456.40, 19,951.56 and 8,170.80 is: 11,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,456.40 : 19,951.56 = 8,170.80 : x
  2. Step 2: Convert to fraction form
    14,456.40/19,951.56 = 8,170.80/x
  3. Step 3: Cross multiply
    14,456.40x = 19,951.56 × 8,170.80
  4. Step 4: Simplify right side
    14,456.40x = 163,020,206.45
  5. Step 5: Solve for x
    x = 163,020,206.45/14,456.40
  6. Step 6: Final answer
    x = 11,276.68

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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.