Home / 18,269.05-25,211.28-9,885.55

Finding the Fourth Proportional to 18,269.05, 25,211.28 and 9,885.55

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Solution

The fourth proportional to 18,269.05, 25,211.28 and 9,885.55 is: 13,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.05 : 25,211.28 = 9,885.55 : x
  2. Step 2: Convert to fraction form
    18,269.05/25,211.28 = 9,885.55/x
  3. Step 3: Cross multiply
    18,269.05x = 25,211.28 × 9,885.55
  4. Step 4: Simplify right side
    18,269.05x = 249,227,369.00
  5. Step 5: Solve for x
    x = 249,227,369.00/18,269.05
  6. Step 6: Final answer
    x = 13,642.05

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Half scale
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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.