Home / 18,102.85-24,955.75-12,708.86

Finding the Fourth Proportional to 18,102.85, 24,955.75 and 12,708.86

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Solution

The fourth proportional to 18,102.85, 24,955.75 and 12,708.86 is: 17,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.85 : 24,955.75 = 12,708.86 : x
  2. Step 2: Convert to fraction form
    18,102.85/24,955.75 = 12,708.86/x
  3. Step 3: Cross multiply
    18,102.85x = 24,955.75 × 12,708.86
  4. Step 4: Simplify right side
    18,102.85x = 317,159,008.17
  5. Step 5: Solve for x
    x = 317,159,008.17/18,102.85
  6. Step 6: Final answer
    x = 17,519.84

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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.