Home / 18,281.31-25,228.15-9,897.81

Finding the Fourth Proportional to 18,281.31, 25,228.15 and 9,897.81

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Solution

The fourth proportional to 18,281.31, 25,228.15 and 9,897.81 is: 13,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.31 : 25,228.15 = 9,897.81 : x
  2. Step 2: Convert to fraction form
    18,281.31/25,228.15 = 9,897.81/x
  3. Step 3: Cross multiply
    18,281.31x = 25,228.15 × 9,897.81
  4. Step 4: Simplify right side
    18,281.31x = 249,703,435.35
  5. Step 5: Solve for x
    x = 249,703,435.35/18,281.31
  6. Step 6: Final answer
    x = 13,658.95

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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.