Home / 15,143.79-22,694.42-12,911.08

Finding the Fourth Proportional to 15,143.79, 22,694.42 and 12,911.08

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Solution

The fourth proportional to 15,143.79, 22,694.42 and 12,911.08 is: 19,348.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.79 : 22,694.42 = 12,911.08 : x
  2. Step 2: Convert to fraction form
    15,143.79/22,694.42 = 12,911.08/x
  3. Step 3: Cross multiply
    15,143.79x = 22,694.42 × 12,911.08
  4. Step 4: Simplify right side
    15,143.79x = 293,009,294.15
  5. Step 5: Solve for x
    x = 293,009,294.15/15,143.79
  6. Step 6: Final answer
    x = 19,348.48

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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.