Home / 7,331.31-10,130.63-5,338.40

Finding the Fourth Proportional to 7,331.31, 10,130.63 and 5,338.40

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Solution

The fourth proportional to 7,331.31, 10,130.63 and 5,338.40 is: 7,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.31 : 10,130.63 = 5,338.40 : x
  2. Step 2: Convert to fraction form
    7,331.31/10,130.63 = 5,338.40/x
  3. Step 3: Cross multiply
    7,331.31x = 10,130.63 × 5,338.40
  4. Step 4: Simplify right side
    7,331.31x = 54,081,277.85
  5. Step 5: Solve for x
    x = 54,081,277.85/7,331.31
  6. Step 6: Final answer
    x = 7,376.76

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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.