Home / 15,535.75-21,440.55-8,823.49

Finding the Fourth Proportional to 15,535.75, 21,440.55 and 8,823.49

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Solution

The fourth proportional to 15,535.75, 21,440.55 and 8,823.49 is: 12,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.75 : 21,440.55 = 8,823.49 : x
  2. Step 2: Convert to fraction form
    15,535.75/21,440.55 = 8,823.49/x
  3. Step 3: Cross multiply
    15,535.75x = 21,440.55 × 8,823.49
  4. Step 4: Simplify right side
    15,535.75x = 189,180,478.52
  5. Step 5: Solve for x
    x = 189,180,478.52/15,535.75
  6. Step 6: Final answer
    x = 12,177.11

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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.