Home / 11,254.28-15,530.28-6,722.08

Finding the Fourth Proportional to 11,254.28, 15,530.28 and 6,722.08

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Solution

The fourth proportional to 11,254.28, 15,530.28 and 6,722.08 is: 9,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,254.28 : 15,530.28 = 6,722.08 : x
  2. Step 2: Convert to fraction form
    11,254.28/15,530.28 = 6,722.08/x
  3. Step 3: Cross multiply
    11,254.28x = 15,530.28 × 6,722.08
  4. Step 4: Simplify right side
    11,254.28x = 104,395,784.58
  5. Step 5: Solve for x
    x = 104,395,784.58/11,254.28
  6. Step 6: Final answer
    x = 9,276.10

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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.