Home / 7,515.36-10,371.60-4,721.76

Finding the Fourth Proportional to 7,515.36, 10,371.60 and 4,721.76

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Solution

The fourth proportional to 7,515.36, 10,371.60 and 4,721.76 is: 6,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.36 : 10,371.60 = 4,721.76 : x
  2. Step 2: Convert to fraction form
    7,515.36/10,371.60 = 4,721.76/x
  3. Step 3: Cross multiply
    7,515.36x = 10,371.60 × 4,721.76
  4. Step 4: Simplify right side
    7,515.36x = 48,972,206.02
  5. Step 5: Solve for x
    x = 48,972,206.02/7,515.36
  6. Step 6: Final answer
    x = 6,516.28

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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.