Home / 10,001.70-15,002.56-7,406.46

Finding the Fourth Proportional to 10,001.70, 15,002.56 and 7,406.46

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Solution

The fourth proportional to 10,001.70, 15,002.56 and 7,406.46 is: 11,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.70 : 15,002.56 = 7,406.46 : x
  2. Step 2: Convert to fraction form
    10,001.70/15,002.56 = 7,406.46/x
  3. Step 3: Cross multiply
    10,001.70x = 15,002.56 × 7,406.46
  4. Step 4: Simplify right side
    10,001.70x = 111,115,860.54
  5. Step 5: Solve for x
    x = 111,115,860.54/10,001.70
  6. Step 6: Final answer
    x = 11,109.70

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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.