Home / 18,412.30-25,409.15-10,454.70

Finding the Fourth Proportional to 18,412.30, 25,409.15 and 10,454.70

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Solution

The fourth proportional to 18,412.30, 25,409.15 and 10,454.70 is: 14,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.30 : 25,409.15 = 10,454.70 : x
  2. Step 2: Convert to fraction form
    18,412.30/25,409.15 = 10,454.70/x
  3. Step 3: Cross multiply
    18,412.30x = 25,409.15 × 10,454.70
  4. Step 4: Simplify right side
    18,412.30x = 265,644,913.46
  5. Step 5: Solve for x
    x = 265,644,913.46/18,412.30
  6. Step 6: Final answer
    x = 14,427.58

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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.