Home / 18,281.34-25,228.71-11,211.66

Finding the Fourth Proportional to 18,281.34, 25,228.71 and 11,211.66

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Solution

The fourth proportional to 18,281.34, 25,228.71 and 11,211.66 is: 15,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.34 : 25,228.71 = 11,211.66 : x
  2. Step 2: Convert to fraction form
    18,281.34/25,228.71 = 11,211.66/x
  3. Step 3: Cross multiply
    18,281.34x = 25,228.71 × 11,211.66
  4. Step 4: Simplify right side
    18,281.34x = 282,855,718.76
  5. Step 5: Solve for x
    x = 282,855,718.76/18,281.34
  6. Step 6: Final answer
    x = 15,472.37

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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.