Home / 11,172.32-15,417.12-6,135.56

Finding the Fourth Proportional to 11,172.32, 15,417.12 and 6,135.56

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Solution

The fourth proportional to 11,172.32, 15,417.12 and 6,135.56 is: 8,466.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.32 : 15,417.12 = 6,135.56 : x
  2. Step 2: Convert to fraction form
    11,172.32/15,417.12 = 6,135.56/x
  3. Step 3: Cross multiply
    11,172.32x = 15,417.12 × 6,135.56
  4. Step 4: Simplify right side
    11,172.32x = 94,592,664.79
  5. Step 5: Solve for x
    x = 94,592,664.79/11,172.32
  6. Step 6: Final answer
    x = 8,466.70

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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.