Home / 18,117.85-25,002.88-10,946.76

Finding the Fourth Proportional to 18,117.85, 25,002.88 and 10,946.76

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Solution

The fourth proportional to 18,117.85, 25,002.88 and 10,946.76 is: 15,106.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.85 : 25,002.88 = 10,946.76 : x
  2. Step 2: Convert to fraction form
    18,117.85/25,002.88 = 10,946.76/x
  3. Step 3: Cross multiply
    18,117.85x = 25,002.88 × 10,946.76
  4. Step 4: Simplify right side
    18,117.85x = 273,700,654.64
  5. Step 5: Solve for x
    x = 273,700,654.64/18,117.85
  6. Step 6: Final answer
    x = 15,106.69

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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.