Home / 11,113.16-15,340.02-6,399.32

Finding the Fourth Proportional to 11,113.16, 15,340.02 and 6,399.32

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Solution

The fourth proportional to 11,113.16, 15,340.02 and 6,399.32 is: 8,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.16 : 15,340.02 = 6,399.32 : x
  2. Step 2: Convert to fraction form
    11,113.16/15,340.02 = 6,399.32/x
  3. Step 3: Cross multiply
    11,113.16x = 15,340.02 × 6,399.32
  4. Step 4: Simplify right side
    11,113.16x = 98,165,696.79
  5. Step 5: Solve for x
    x = 98,165,696.79/11,113.16
  6. Step 6: Final answer
    x = 8,833.28

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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.