Home / 10,427.66-15,639.59-4,187.42

Finding the Fourth Proportional to 10,427.66, 15,639.59 and 4,187.42

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Solution

The fourth proportional to 10,427.66, 15,639.59 and 4,187.42 is: 6,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.66 : 15,639.59 = 4,187.42 : x
  2. Step 2: Convert to fraction form
    10,427.66/15,639.59 = 4,187.42/x
  3. Step 3: Cross multiply
    10,427.66x = 15,639.59 × 4,187.42
  4. Step 4: Simplify right side
    10,427.66x = 65,489,432.82
  5. Step 5: Solve for x
    x = 65,489,432.82/10,427.66
  6. Step 6: Final answer
    x = 6,280.36

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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.