Home / 18,297.28-25,250.36-9,913.76

Finding the Fourth Proportional to 18,297.28, 25,250.36 and 9,913.76

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Solution

The fourth proportional to 18,297.28, 25,250.36 and 9,913.76 is: 13,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.28 : 25,250.36 = 9,913.76 : x
  2. Step 2: Convert to fraction form
    18,297.28/25,250.36 = 9,913.76/x
  3. Step 3: Cross multiply
    18,297.28x = 25,250.36 × 9,913.76
  4. Step 4: Simplify right side
    18,297.28x = 250,326,008.95
  5. Step 5: Solve for x
    x = 250,326,008.95/18,297.28
  6. Step 6: Final answer
    x = 13,681.05

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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.