Home / 18,281.76-25,228.94-9,898.26

Finding the Fourth Proportional to 18,281.76, 25,228.94 and 9,898.26

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Solution

The fourth proportional to 18,281.76, 25,228.94 and 9,898.26 is: 13,659.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.76 : 25,228.94 = 9,898.26 : x
  2. Step 2: Convert to fraction form
    18,281.76/25,228.94 = 9,898.26/x
  3. Step 3: Cross multiply
    18,281.76x = 25,228.94 × 9,898.26
  4. Step 4: Simplify right side
    18,281.76x = 249,722,607.64
  5. Step 5: Solve for x
    x = 249,722,607.64/18,281.76
  6. Step 6: Final answer
    x = 13,659.66

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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.