Home / 9,167.28-12,650.64-5,188.20

Finding the Fourth Proportional to 9,167.28, 12,650.64 and 5,188.20

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Solution

The fourth proportional to 9,167.28, 12,650.64 and 5,188.20 is: 7,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.28 : 12,650.64 = 5,188.20 : x
  2. Step 2: Convert to fraction form
    9,167.28/12,650.64 = 5,188.20/x
  3. Step 3: Cross multiply
    9,167.28x = 12,650.64 × 5,188.20
  4. Step 4: Simplify right side
    9,167.28x = 65,634,050.45
  5. Step 5: Solve for x
    x = 65,634,050.45/9,167.28
  6. Step 6: Final answer
    x = 7,159.60

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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.