Home / 18,326.18-25,276.28-12,670.38

Finding the Fourth Proportional to 18,326.18, 25,276.28 and 12,670.38

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Solution

The fourth proportional to 18,326.18, 25,276.28 and 12,670.38 is: 17,475.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.18 : 25,276.28 = 12,670.38 : x
  2. Step 2: Convert to fraction form
    18,326.18/25,276.28 = 12,670.38/x
  3. Step 3: Cross multiply
    18,326.18x = 25,276.28 × 12,670.38
  4. Step 4: Simplify right side
    18,326.18x = 320,260,009.23
  5. Step 5: Solve for x
    x = 320,260,009.23/18,326.18
  6. Step 6: Final answer
    x = 17,475.55

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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.