Home / 18,372.40-25,355.28-11,301.28

Finding the Fourth Proportional to 18,372.40, 25,355.28 and 11,301.28

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Solution

The fourth proportional to 18,372.40, 25,355.28 and 11,301.28 is: 15,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.40 : 25,355.28 = 11,301.28 : x
  2. Step 2: Convert to fraction form
    18,372.40/25,355.28 = 11,301.28/x
  3. Step 3: Cross multiply
    18,372.40x = 25,355.28 × 11,301.28
  4. Step 4: Simplify right side
    18,372.40x = 286,547,118.76
  5. Step 5: Solve for x
    x = 286,547,118.76/18,372.40
  6. Step 6: Final answer
    x = 15,596.61

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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.