Home / 12,902.58-19,246.72-12,470.66

Finding the Fourth Proportional to 12,902.58, 19,246.72 and 12,470.66

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Solution

The fourth proportional to 12,902.58, 19,246.72 and 12,470.66 is: 18,602.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902.58 : 19,246.72 = 12,470.66 : x
  2. Step 2: Convert to fraction form
    12,902.58/19,246.72 = 12,470.66/x
  3. Step 3: Cross multiply
    12,902.58x = 19,246.72 × 12,470.66
  4. Step 4: Simplify right side
    12,902.58x = 240,019,301.24
  5. Step 5: Solve for x
    x = 240,019,301.24/12,902.58
  6. Step 6: Final answer
    x = 18,602.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.