Home / 18,964.50-28,449.45-10,077.51

Finding the Fourth Proportional to 18,964.50, 28,449.45 and 10,077.51

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Solution

The fourth proportional to 18,964.50, 28,449.45 and 10,077.51 is: 15,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.50 : 28,449.45 = 10,077.51 : x
  2. Step 2: Convert to fraction form
    18,964.50/28,449.45 = 10,077.51/x
  3. Step 3: Cross multiply
    18,964.50x = 28,449.45 × 10,077.51
  4. Step 4: Simplify right side
    18,964.50x = 286,699,616.87
  5. Step 5: Solve for x
    x = 286,699,616.87/18,964.50
  6. Step 6: Final answer
    x = 15,117.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.