Home / 11,212.40-15,471.77-6,432.10

Finding the Fourth Proportional to 11,212.40, 15,471.77 and 6,432.10

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Solution

The fourth proportional to 11,212.40, 15,471.77 and 6,432.10 is: 8,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.40 : 15,471.77 = 6,432.10 : x
  2. Step 2: Convert to fraction form
    11,212.40/15,471.77 = 6,432.10/x
  3. Step 3: Cross multiply
    11,212.40x = 15,471.77 × 6,432.10
  4. Step 4: Simplify right side
    11,212.40x = 99,515,924.45
  5. Step 5: Solve for x
    x = 99,515,924.45/11,212.40
  6. Step 6: Final answer
    x = 8,875.52

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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.