Home / 15,823.36-21,836.28-8,749.66

Finding the Fourth Proportional to 15,823.36, 21,836.28 and 8,749.66

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Solution

The fourth proportional to 15,823.36, 21,836.28 and 8,749.66 is: 12,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,823.36 : 21,836.28 = 8,749.66 : x
  2. Step 2: Convert to fraction form
    15,823.36/21,836.28 = 8,749.66/x
  3. Step 3: Cross multiply
    15,823.36x = 21,836.28 × 8,749.66
  4. Step 4: Simplify right side
    15,823.36x = 191,060,025.66
  5. Step 5: Solve for x
    x = 191,060,025.66/15,823.36
  6. Step 6: Final answer
    x = 12,074.55

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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.