Home / 7,270.88-10,039.40-5,286.18

Finding the Fourth Proportional to 7,270.88, 10,039.40 and 5,286.18

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Solution

The fourth proportional to 7,270.88, 10,039.40 and 5,286.18 is: 7,298.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270.88 : 10,039.40 = 5,286.18 : x
  2. Step 2: Convert to fraction form
    7,270.88/10,039.40 = 5,286.18/x
  3. Step 3: Cross multiply
    7,270.88x = 10,039.40 × 5,286.18
  4. Step 4: Simplify right side
    7,270.88x = 53,070,075.49
  5. Step 5: Solve for x
    x = 53,070,075.49/7,270.88
  6. Step 6: Final answer
    x = 7,298.99

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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.