Home / 8,276.86-12,415.29-5,353.57

Finding the Fourth Proportional to 8,276.86, 12,415.29 and 5,353.57

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Solution

The fourth proportional to 8,276.86, 12,415.29 and 5,353.57 is: 8,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.86 : 12,415.29 = 5,353.57 : x
  2. Step 2: Convert to fraction form
    8,276.86/12,415.29 = 5,353.57/x
  3. Step 3: Cross multiply
    8,276.86x = 12,415.29 × 5,353.57
  4. Step 4: Simplify right side
    8,276.86x = 66,466,124.09
  5. Step 5: Solve for x
    x = 66,466,124.09/8,276.86
  6. Step 6: Final answer
    x = 8,030.36

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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.