Home / 12,295.15-18,458.28-10,240.30

Finding the Fourth Proportional to 12,295.15, 18,458.28 and 10,240.30

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Solution

The fourth proportional to 12,295.15, 18,458.28 and 10,240.30 is: 15,373.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.15 : 18,458.28 = 10,240.30 : x
  2. Step 2: Convert to fraction form
    12,295.15/18,458.28 = 10,240.30/x
  3. Step 3: Cross multiply
    12,295.15x = 18,458.28 × 10,240.30
  4. Step 4: Simplify right side
    12,295.15x = 189,018,324.68
  5. Step 5: Solve for x
    x = 189,018,324.68/12,295.15
  6. Step 6: Final answer
    x = 15,373.41

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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.