Home / 10,618.15-15,929.23-3,502.80

Finding the Fourth Proportional to 10,618.15, 15,929.23 and 3,502.80

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Solution

The fourth proportional to 10,618.15, 15,929.23 and 3,502.80 is: 5,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.15 : 15,929.23 = 3,502.80 : x
  2. Step 2: Convert to fraction form
    10,618.15/15,929.23 = 3,502.80/x
  3. Step 3: Cross multiply
    10,618.15x = 15,929.23 × 3,502.80
  4. Step 4: Simplify right side
    10,618.15x = 55,796,827.20
  5. Step 5: Solve for x
    x = 55,796,827.20/10,618.15
  6. Step 6: Final answer
    x = 5,254.85

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1.5x scale

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.