Home / 7,447.78-10,263.12-5,317.30

Finding the Fourth Proportional to 7,447.78, 10,263.12 and 5,317.30

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Solution

The fourth proportional to 7,447.78, 10,263.12 and 5,317.30 is: 7,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.78 : 10,263.12 = 5,317.30 : x
  2. Step 2: Convert to fraction form
    7,447.78/10,263.12 = 5,317.30/x
  3. Step 3: Cross multiply
    7,447.78x = 10,263.12 × 5,317.30
  4. Step 4: Simplify right side
    7,447.78x = 54,572,087.98
  5. Step 5: Solve for x
    x = 54,572,087.98/7,447.78
  6. Step 6: Final answer
    x = 7,327.30

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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.