Home / 7,800.07-11,700.45-7,246.49

Finding the Fourth Proportional to 7,800.07, 11,700.45 and 7,246.49

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Solution

The fourth proportional to 7,800.07, 11,700.45 and 7,246.49 is: 10,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.07 : 11,700.45 = 7,246.49 : x
  2. Step 2: Convert to fraction form
    7,800.07/11,700.45 = 7,246.49/x
  3. Step 3: Cross multiply
    7,800.07x = 11,700.45 × 7,246.49
  4. Step 4: Simplify right side
    7,800.07x = 84,787,168.33
  5. Step 5: Solve for x
    x = 84,787,168.33/7,800.07
  6. Step 6: Final answer
    x = 10,870.05

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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.