Home / 7,587.40-11,384.54-3,425.16

Finding the Fourth Proportional to 7,587.40, 11,384.54 and 3,425.16

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Solution

The fourth proportional to 7,587.40, 11,384.54 and 3,425.16 is: 5,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.40 : 11,384.54 = 3,425.16 : x
  2. Step 2: Convert to fraction form
    7,587.40/11,384.54 = 3,425.16/x
  3. Step 3: Cross multiply
    7,587.40x = 11,384.54 × 3,425.16
  4. Step 4: Simplify right side
    7,587.40x = 38,993,871.03
  5. Step 5: Solve for x
    x = 38,993,871.03/7,587.40
  6. Step 6: Final answer
    x = 5,139.29

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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.