Home / 15,005.78-22,507.76-6,240.77

Finding the Fourth Proportional to 15,005.78, 22,507.76 and 6,240.77

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Solution

The fourth proportional to 15,005.78, 22,507.76 and 6,240.77 is: 9,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.78 : 22,507.76 = 6,240.77 : x
  2. Step 2: Convert to fraction form
    15,005.78/22,507.76 = 6,240.77/x
  3. Step 3: Cross multiply
    15,005.78x = 22,507.76 × 6,240.77
  4. Step 4: Simplify right side
    15,005.78x = 140,465,609.63
  5. Step 5: Solve for x
    x = 140,465,609.63/15,005.78
  6. Step 6: Final answer
    x = 9,360.77

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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.