Home / 10,275.13-14,179.78-5,559.51

Finding the Fourth Proportional to 10,275.13, 14,179.78 and 5,559.51

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Solution

The fourth proportional to 10,275.13, 14,179.78 and 5,559.51 is: 7,672.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.13 : 14,179.78 = 5,559.51 : x
  2. Step 2: Convert to fraction form
    10,275.13/14,179.78 = 5,559.51/x
  3. Step 3: Cross multiply
    10,275.13x = 14,179.78 × 5,559.51
  4. Step 4: Simplify right side
    10,275.13x = 78,832,600.91
  5. Step 5: Solve for x
    x = 78,832,600.91/10,275.13
  6. Step 6: Final answer
    x = 7,672.18

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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.