Home / 10,272.30-15,376.05-7,356.30

Finding the Fourth Proportional to 10,272.30, 15,376.05 and 7,356.30

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Solution

The fourth proportional to 10,272.30, 15,376.05 and 7,356.30 is: 11,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.30 : 15,376.05 = 7,356.30 : x
  2. Step 2: Convert to fraction form
    10,272.30/15,376.05 = 7,356.30/x
  3. Step 3: Cross multiply
    10,272.30x = 15,376.05 × 7,356.30
  4. Step 4: Simplify right side
    10,272.30x = 113,110,836.62
  5. Step 5: Solve for x
    x = 113,110,836.62/10,272.30
  6. Step 6: Final answer
    x = 11,011.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.