Home / 15,145.02-22,703.72-12,819.96

Finding the Fourth Proportional to 15,145.02, 22,703.72 and 12,819.96

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Solution

The fourth proportional to 15,145.02, 22,703.72 and 12,819.96 is: 19,218.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.02 : 22,703.72 = 12,819.96 : x
  2. Step 2: Convert to fraction form
    15,145.02/22,703.72 = 12,819.96/x
  3. Step 3: Cross multiply
    15,145.02x = 22,703.72 × 12,819.96
  4. Step 4: Simplify right side
    15,145.02x = 291,060,718.15
  5. Step 5: Solve for x
    x = 291,060,718.15/15,145.02
  6. Step 6: Final answer
    x = 19,218.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.