Home / 11,422.10-15,764.28-6,947.26

Finding the Fourth Proportional to 11,422.10, 15,764.28 and 6,947.26

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Solution

The fourth proportional to 11,422.10, 15,764.28 and 6,947.26 is: 9,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.10 : 15,764.28 = 6,947.26 : x
  2. Step 2: Convert to fraction form
    11,422.10/15,764.28 = 6,947.26/x
  3. Step 3: Cross multiply
    11,422.10x = 15,764.28 × 6,947.26
  4. Step 4: Simplify right side
    11,422.10x = 109,518,551.87
  5. Step 5: Solve for x
    x = 109,518,551.87/11,422.10
  6. Step 6: Final answer
    x = 9,588.30

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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.