Home / 8,740.40-13,097.49-7,100.12

Finding the Fourth Proportional to 8,740.40, 13,097.49 and 7,100.12

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Solution

The fourth proportional to 8,740.40, 13,097.49 and 7,100.12 is: 10,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.40 : 13,097.49 = 7,100.12 : x
  2. Step 2: Convert to fraction form
    8,740.40/13,097.49 = 7,100.12/x
  3. Step 3: Cross multiply
    8,740.40x = 13,097.49 × 7,100.12
  4. Step 4: Simplify right side
    8,740.40x = 92,993,750.70
  5. Step 5: Solve for x
    x = 92,993,750.70/8,740.40
  6. Step 6: Final answer
    x = 10,639.53

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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.