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Finding the Fourth Proportional to 7,119.29, 10,605.99 and 7,041.53

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Solution

The fourth proportional to 7,119.29, 10,605.99 and 7,041.53 is: 10,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.29 : 10,605.99 = 7,041.53 : x
  2. Step 2: Convert to fraction form
    7,119.29/10,605.99 = 7,041.53/x
  3. Step 3: Cross multiply
    7,119.29x = 10,605.99 × 7,041.53
  4. Step 4: Simplify right side
    7,119.29x = 74,682,396.76
  5. Step 5: Solve for x
    x = 74,682,396.76/7,119.29
  6. Step 6: Final answer
    x = 10,490.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.