Home / 18,425.34-25,417.44-12,459.15

Finding the Fourth Proportional to 18,425.34, 25,417.44 and 12,459.15

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Solution

The fourth proportional to 18,425.34, 25,417.44 and 12,459.15 is: 17,187.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.34 : 25,417.44 = 12,459.15 : x
  2. Step 2: Convert to fraction form
    18,425.34/25,417.44 = 12,459.15/x
  3. Step 3: Cross multiply
    18,425.34x = 25,417.44 × 12,459.15
  4. Step 4: Simplify right side
    18,425.34x = 316,679,697.58
  5. Step 5: Solve for x
    x = 316,679,697.58/18,425.34
  6. Step 6: Final answer
    x = 17,187.18

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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.