Home / 15,360.53-21,195.23-8,645.75

Finding the Fourth Proportional to 15,360.53, 21,195.23 and 8,645.75

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Solution

The fourth proportional to 15,360.53, 21,195.23 and 8,645.75 is: 11,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.53 : 21,195.23 = 8,645.75 : x
  2. Step 2: Convert to fraction form
    15,360.53/21,195.23 = 8,645.75/x
  3. Step 3: Cross multiply
    15,360.53x = 21,195.23 × 8,645.75
  4. Step 4: Simplify right side
    15,360.53x = 183,248,734.37
  5. Step 5: Solve for x
    x = 183,248,734.37/15,360.53
  6. Step 6: Final answer
    x = 11,929.85

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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.