Home / 11,150.56-15,386.52-6,436.40

Finding the Fourth Proportional to 11,150.56, 15,386.52 and 6,436.40

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Solution

The fourth proportional to 11,150.56, 15,386.52 and 6,436.40 is: 8,881.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.56 : 15,386.52 = 6,436.40 : x
  2. Step 2: Convert to fraction form
    11,150.56/15,386.52 = 6,436.40/x
  3. Step 3: Cross multiply
    11,150.56x = 15,386.52 × 6,436.40
  4. Step 4: Simplify right side
    11,150.56x = 99,033,797.33
  5. Step 5: Solve for x
    x = 99,033,797.33/11,150.56
  6. Step 6: Final answer
    x = 8,881.51

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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.