Home / 11,275.61-15,559.29-6,496.40

Finding the Fourth Proportional to 11,275.61, 15,559.29 and 6,496.40

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Solution

The fourth proportional to 11,275.61, 15,559.29 and 6,496.40 is: 8,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.61 : 15,559.29 = 6,496.40 : x
  2. Step 2: Convert to fraction form
    11,275.61/15,559.29 = 6,496.40/x
  3. Step 3: Cross multiply
    11,275.61x = 15,559.29 × 6,496.40
  4. Step 4: Simplify right side
    11,275.61x = 101,079,410.45
  5. Step 5: Solve for x
    x = 101,079,410.45/11,275.61
  6. Step 6: Final answer
    x = 8,964.43

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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.