Home / 7,564.70-10,439.86-4,207.78

Finding the Fourth Proportional to 7,564.70, 10,439.86 and 4,207.78

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Solution

The fourth proportional to 7,564.70, 10,439.86 and 4,207.78 is: 5,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,564.70 : 10,439.86 = 4,207.78 : x
  2. Step 2: Convert to fraction form
    7,564.70/10,439.86 = 4,207.78/x
  3. Step 3: Cross multiply
    7,564.70x = 10,439.86 × 4,207.78
  4. Step 4: Simplify right side
    7,564.70x = 43,928,634.11
  5. Step 5: Solve for x
    x = 43,928,634.11/7,564.70
  6. Step 6: Final answer
    x = 5,807.06

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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.