Home / 15,026.76-20,718.03-9,639.66

Finding the Fourth Proportional to 15,026.76, 20,718.03 and 9,639.66

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Solution

The fourth proportional to 15,026.76, 20,718.03 and 9,639.66 is: 13,290.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.76 : 20,718.03 = 9,639.66 : x
  2. Step 2: Convert to fraction form
    15,026.76/20,718.03 = 9,639.66/x
  3. Step 3: Cross multiply
    15,026.76x = 20,718.03 × 9,639.66
  4. Step 4: Simplify right side
    15,026.76x = 199,714,765.07
  5. Step 5: Solve for x
    x = 199,714,765.07/15,026.76
  6. Step 6: Final answer
    x = 13,290.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.