Home / 18,435.32-25,420.66-12,456.62

Finding the Fourth Proportional to 18,435.32, 25,420.66 and 12,456.62

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Solution

The fourth proportional to 18,435.32, 25,420.66 and 12,456.62 is: 17,176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.32 : 25,420.66 = 12,456.62 : x
  2. Step 2: Convert to fraction form
    18,435.32/25,420.66 = 12,456.62/x
  3. Step 3: Cross multiply
    18,435.32x = 25,420.66 × 12,456.62
  4. Step 4: Simplify right side
    18,435.32x = 316,655,501.77
  5. Step 5: Solve for x
    x = 316,655,501.77/18,435.32
  6. Step 6: Final answer
    x = 17,176.57

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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.