Home / 7,530.31-11,302.45-5,424.11

Finding the Fourth Proportional to 7,530.31, 11,302.45 and 5,424.11

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Solution

The fourth proportional to 7,530.31, 11,302.45 and 5,424.11 is: 8,141.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,530.31 : 11,302.45 = 5,424.11 : x
  2. Step 2: Convert to fraction form
    7,530.31/11,302.45 = 5,424.11/x
  3. Step 3: Cross multiply
    7,530.31x = 11,302.45 × 5,424.11
  4. Step 4: Simplify right side
    7,530.31x = 61,305,703.53
  5. Step 5: Solve for x
    x = 61,305,703.53/7,530.31
  6. Step 6: Final answer
    x = 8,141.19

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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.