Home / 12,281.40-18,397.80-7,336.35

Finding the Fourth Proportional to 12,281.40, 18,397.80 and 7,336.35

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Solution

The fourth proportional to 12,281.40, 18,397.80 and 7,336.35 is: 10,990.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.40 : 18,397.80 = 7,336.35 : x
  2. Step 2: Convert to fraction form
    12,281.40/18,397.80 = 7,336.35/x
  3. Step 3: Cross multiply
    12,281.40x = 18,397.80 × 7,336.35
  4. Step 4: Simplify right side
    12,281.40x = 134,972,700.03
  5. Step 5: Solve for x
    x = 134,972,700.03/12,281.40
  6. Step 6: Final answer
    x = 10,990.01

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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.