Home / 11,190.04-15,442.30-7,000.68

Finding the Fourth Proportional to 11,190.04, 15,442.30 and 7,000.68

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Solution

The fourth proportional to 11,190.04, 15,442.30 and 7,000.68 is: 9,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.04 : 15,442.30 = 7,000.68 : x
  2. Step 2: Convert to fraction form
    11,190.04/15,442.30 = 7,000.68/x
  3. Step 3: Cross multiply
    11,190.04x = 15,442.30 × 7,000.68
  4. Step 4: Simplify right side
    11,190.04x = 108,106,600.76
  5. Step 5: Solve for x
    x = 108,106,600.76/11,190.04
  6. Step 6: Final answer
    x = 9,660.97

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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.