Home / 7,287.04-10,920.39-6,407.38

Finding the Fourth Proportional to 7,287.04, 10,920.39 and 6,407.38

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Solution

The fourth proportional to 7,287.04, 10,920.39 and 6,407.38 is: 9,602.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.04 : 10,920.39 = 6,407.38 : x
  2. Step 2: Convert to fraction form
    7,287.04/10,920.39 = 6,407.38/x
  3. Step 3: Cross multiply
    7,287.04x = 10,920.39 × 6,407.38
  4. Step 4: Simplify right side
    7,287.04x = 69,971,088.48
  5. Step 5: Solve for x
    x = 69,971,088.48/7,287.04
  6. Step 6: Final answer
    x = 9,602.13

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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.