Home / 11,148.32-15,384.60-6,112.72

Finding the Fourth Proportional to 11,148.32, 15,384.60 and 6,112.72

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Solution

The fourth proportional to 11,148.32, 15,384.60 and 6,112.72 is: 8,435.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.32 : 15,384.60 = 6,112.72 : x
  2. Step 2: Convert to fraction form
    11,148.32/15,384.60 = 6,112.72/x
  3. Step 3: Cross multiply
    11,148.32x = 15,384.60 × 6,112.72
  4. Step 4: Simplify right side
    11,148.32x = 94,041,752.11
  5. Step 5: Solve for x
    x = 94,041,752.11/11,148.32
  6. Step 6: Final answer
    x = 8,435.51

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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.