Home / 18,353.90-25,320.12-11,277.74

Finding the Fourth Proportional to 18,353.90, 25,320.12 and 11,277.74

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Solution

The fourth proportional to 18,353.90, 25,320.12 and 11,277.74 is: 15,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.90 : 25,320.12 = 11,277.74 : x
  2. Step 2: Convert to fraction form
    18,353.90/25,320.12 = 11,277.74/x
  3. Step 3: Cross multiply
    18,353.90x = 25,320.12 × 11,277.74
  4. Step 4: Simplify right side
    18,353.90x = 285,553,730.13
  5. Step 5: Solve for x
    x = 285,553,730.13/18,353.90
  6. Step 6: Final answer
    x = 15,558.20

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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.