Home / 10,055.62-15,094.46-7,988.90

Finding the Fourth Proportional to 10,055.62, 15,094.46 and 7,988.90

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Solution

The fourth proportional to 10,055.62, 15,094.46 and 7,988.90 is: 11,992.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,055.62 : 15,094.46 = 7,988.90 : x
  2. Step 2: Convert to fraction form
    10,055.62/15,094.46 = 7,988.90/x
  3. Step 3: Cross multiply
    10,055.62x = 15,094.46 × 7,988.90
  4. Step 4: Simplify right side
    10,055.62x = 120,588,091.55
  5. Step 5: Solve for x
    x = 120,588,091.55/10,055.62
  6. Step 6: Final answer
    x = 11,992.12

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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.