Home / 10,445.13-15,661.38-4,112.43

Finding the Fourth Proportional to 10,445.13, 15,661.38 and 4,112.43

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Solution

The fourth proportional to 10,445.13, 15,661.38 and 4,112.43 is: 6,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.13 : 15,661.38 = 4,112.43 : x
  2. Step 2: Convert to fraction form
    10,445.13/15,661.38 = 4,112.43/x
  3. Step 3: Cross multiply
    10,445.13x = 15,661.38 × 4,112.43
  4. Step 4: Simplify right side
    10,445.13x = 64,406,328.95
  5. Step 5: Solve for x
    x = 64,406,328.95/10,445.13
  6. Step 6: Final answer
    x = 6,166.16

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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.