Home / 15,501.78-23,238.90-5,639.22

Finding the Fourth Proportional to 15,501.78, 23,238.90 and 5,639.22

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Solution

The fourth proportional to 15,501.78, 23,238.90 and 5,639.22 is: 8,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,501.78 : 23,238.90 = 5,639.22 : x
  2. Step 2: Convert to fraction form
    15,501.78/23,238.90 = 5,639.22/x
  3. Step 3: Cross multiply
    15,501.78x = 23,238.90 × 5,639.22
  4. Step 4: Simplify right side
    15,501.78x = 131,049,269.66
  5. Step 5: Solve for x
    x = 131,049,269.66/15,501.78
  6. Step 6: Final answer
    x = 8,453.82

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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.