Home / 10,015.40-15,001.20-5,076.56

Finding the Fourth Proportional to 10,015.40, 15,001.20 and 5,076.56

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Solution

The fourth proportional to 10,015.40, 15,001.20 and 5,076.56 is: 7,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.40 : 15,001.20 = 5,076.56 : x
  2. Step 2: Convert to fraction form
    10,015.40/15,001.20 = 5,076.56/x
  3. Step 3: Cross multiply
    10,015.40x = 15,001.20 × 5,076.56
  4. Step 4: Simplify right side
    10,015.40x = 76,154,491.87
  5. Step 5: Solve for x
    x = 76,154,491.87/10,015.40
  6. Step 6: Final answer
    x = 7,603.74

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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.