Home / 14,739.90-20,366.96-11,780.16

Finding the Fourth Proportional to 14,739.90, 20,366.96 and 11,780.16

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Solution

The fourth proportional to 14,739.90, 20,366.96 and 11,780.16 is: 16,277.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,739.90 : 20,366.96 = 11,780.16 : x
  2. Step 2: Convert to fraction form
    14,739.90/20,366.96 = 11,780.16/x
  3. Step 3: Cross multiply
    14,739.90x = 20,366.96 × 11,780.16
  4. Step 4: Simplify right side
    14,739.90x = 239,925,988.61
  5. Step 5: Solve for x
    x = 239,925,988.61/14,739.90
  6. Step 6: Final answer
    x = 16,277.31

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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.