Home / 11,279.04-15,526.56-9,286.08

Finding the Fourth Proportional to 11,279.04, 15,526.56 and 9,286.08

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Solution

The fourth proportional to 11,279.04, 15,526.56 and 9,286.08 is: 12,783.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.04 : 15,526.56 = 9,286.08 : x
  2. Step 2: Convert to fraction form
    11,279.04/15,526.56 = 9,286.08/x
  3. Step 3: Cross multiply
    11,279.04x = 15,526.56 × 9,286.08
  4. Step 4: Simplify right side
    11,279.04x = 144,180,878.28
  5. Step 5: Solve for x
    x = 144,180,878.28/11,279.04
  6. Step 6: Final answer
    x = 12,783.08

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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.