Home / 12,112.64-18,152.55-8,575.16

Finding the Fourth Proportional to 12,112.64, 18,152.55 and 8,575.16

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Solution

The fourth proportional to 12,112.64, 18,152.55 and 8,575.16 is: 12,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.64 : 18,152.55 = 8,575.16 : x
  2. Step 2: Convert to fraction form
    12,112.64/18,152.55 = 8,575.16/x
  3. Step 3: Cross multiply
    12,112.64x = 18,152.55 × 8,575.16
  4. Step 4: Simplify right side
    12,112.64x = 155,660,977.78
  5. Step 5: Solve for x
    x = 155,660,977.78/12,112.64
  6. Step 6: Final answer
    x = 12,851.12

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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.