Home / 7,253.12-10,033.80-6,990.68

Finding the Fourth Proportional to 7,253.12, 10,033.80 and 6,990.68

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Solution

The fourth proportional to 7,253.12, 10,033.80 and 6,990.68 is: 9,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,253.12 : 10,033.80 = 6,990.68 : x
  2. Step 2: Convert to fraction form
    7,253.12/10,033.80 = 6,990.68/x
  3. Step 3: Cross multiply
    7,253.12x = 10,033.80 × 6,990.68
  4. Step 4: Simplify right side
    7,253.12x = 70,143,084.98
  5. Step 5: Solve for x
    x = 70,143,084.98/7,253.12
  6. Step 6: Final answer
    x = 9,670.75

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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.