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Finding the Fourth Proportional to 7,510.68, 10,272.75 and 7,389.72

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Solution

The fourth proportional to 7,510.68, 10,272.75 and 7,389.72 is: 10,107.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,510.68 : 10,272.75 = 7,389.72 : x
  2. Step 2: Convert to fraction form
    7,510.68/10,272.75 = 7,389.72/x
  3. Step 3: Cross multiply
    7,510.68x = 10,272.75 × 7,389.72
  4. Step 4: Simplify right side
    7,510.68x = 75,912,746.13
  5. Step 5: Solve for x
    x = 75,912,746.13/7,510.68
  6. Step 6: Final answer
    x = 10,107.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.