Home / 10,287,255.60-15,427,733.04-7,112,781.36

Finding the Fourth Proportional to 10,287,255.60, 15,427,733.04 and 7,112,781.36

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Solution

The fourth proportional to 10,287,255.60, 15,427,733.04 and 7,112,781.36 is: 10,666,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287,255.60 : 15,427,733.04 = 7,112,781.36 : x
  2. Step 2: Convert to fraction form
    10,287,255.60/15,427,733.04 = 7,112,781.36/x
  3. Step 3: Cross multiply
    10,287,255.60x = 15,427,733.04 × 7,112,781.36
  4. Step 4: Simplify right side
    10,287,255.60x = 109,734,091,993,968.14
  5. Step 5: Solve for x
    x = 109,734,091,993,968.14/10,287,255.60
  6. Step 6: Final answer
    x = 10,666,993.83

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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.