Home / 11,272.28-15,558.90-9,033.28

Finding the Fourth Proportional to 11,272.28, 15,558.90 and 9,033.28

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Solution

The fourth proportional to 11,272.28, 15,558.90 and 9,033.28 is: 12,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.28 : 15,558.90 = 9,033.28 : x
  2. Step 2: Convert to fraction form
    11,272.28/15,558.90 = 9,033.28/x
  3. Step 3: Cross multiply
    11,272.28x = 15,558.90 × 9,033.28
  4. Step 4: Simplify right side
    11,272.28x = 140,547,900.19
  5. Step 5: Solve for x
    x = 140,547,900.19/11,272.28
  6. Step 6: Final answer
    x = 12,468.45

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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.