Home / 10,427.39-15,641.28-3,407.42

Finding the Fourth Proportional to 10,427.39, 15,641.28 and 3,407.42

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Solution

The fourth proportional to 10,427.39, 15,641.28 and 3,407.42 is: 5,111.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.39 : 15,641.28 = 3,407.42 : x
  2. Step 2: Convert to fraction form
    10,427.39/15,641.28 = 3,407.42/x
  3. Step 3: Cross multiply
    10,427.39x = 15,641.28 × 3,407.42
  4. Step 4: Simplify right side
    10,427.39x = 53,296,410.30
  5. Step 5: Solve for x
    x = 53,296,410.30/10,427.39
  6. Step 6: Final answer
    x = 5,111.19

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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.