Home / 18,635.12-25,710.18-12,656.42

Finding the Fourth Proportional to 18,635.12, 25,710.18 and 12,656.42

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Solution

The fourth proportional to 18,635.12, 25,710.18 and 12,656.42 is: 17,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.12 : 25,710.18 = 12,656.42 : x
  2. Step 2: Convert to fraction form
    18,635.12/25,710.18 = 12,656.42/x
  3. Step 3: Cross multiply
    18,635.12x = 25,710.18 × 12,656.42
  4. Step 4: Simplify right side
    18,635.12x = 325,398,836.36
  5. Step 5: Solve for x
    x = 325,398,836.36/18,635.12
  6. Step 6: Final answer
    x = 17,461.59

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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.