Home / 15,126.64-20,873.16-8,411.18

Finding the Fourth Proportional to 15,126.64, 20,873.16 and 8,411.18

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Solution

The fourth proportional to 15,126.64, 20,873.16 and 8,411.18 is: 11,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.64 : 20,873.16 = 8,411.18 : x
  2. Step 2: Convert to fraction form
    15,126.64/20,873.16 = 8,411.18/x
  3. Step 3: Cross multiply
    15,126.64x = 20,873.16 × 8,411.18
  4. Step 4: Simplify right side
    15,126.64x = 175,567,905.93
  5. Step 5: Solve for x
    x = 175,567,905.93/15,126.64
  6. Step 6: Final answer
    x = 11,606.54

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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.