Home / 26,143.72-39,215.52-7,423.78

Finding the Fourth Proportional to 26,143.72, 39,215.52 and 7,423.78

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Solution

The fourth proportional to 26,143.72, 39,215.52 and 7,423.78 is: 11,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,143.72 : 39,215.52 = 7,423.78 : x
  2. Step 2: Convert to fraction form
    26,143.72/39,215.52 = 7,423.78/x
  3. Step 3: Cross multiply
    26,143.72x = 39,215.52 × 7,423.78
  4. Step 4: Simplify right side
    26,143.72x = 291,127,393.07
  5. Step 5: Solve for x
    x = 291,127,393.07/26,143.72
  6. Step 6: Final answer
    x = 11,135.65

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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.