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Finding the Fourth Proportional to 7,110.10, 10,665.15 and 7,110.10

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Solution

The fourth proportional to 7,110.10, 10,665.15 and 7,110.10 is: 10,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.10 : 10,665.15 = 7,110.10 : x
  2. Step 2: Convert to fraction form
    7,110.10/10,665.15 = 7,110.10/x
  3. Step 3: Cross multiply
    7,110.10x = 10,665.15 × 7,110.10
  4. Step 4: Simplify right side
    7,110.10x = 75,830,283.02
  5. Step 5: Solve for x
    x = 75,830,283.02/7,110.10
  6. Step 6: Final answer
    x = 10,665.15

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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.