Home / 10,242.58-15,368.68-5,309.54

Finding the Fourth Proportional to 10,242.58, 15,368.68 and 5,309.54

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Solution

The fourth proportional to 10,242.58, 15,368.68 and 5,309.54 is: 7,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,242.58 : 15,368.68 = 5,309.54 : x
  2. Step 2: Convert to fraction form
    10,242.58/15,368.68 = 5,309.54/x
  3. Step 3: Cross multiply
    10,242.58x = 15,368.68 × 5,309.54
  4. Step 4: Simplify right side
    10,242.58x = 81,600,621.21
  5. Step 5: Solve for x
    x = 81,600,621.21/10,242.58
  6. Step 6: Final answer
    x = 7,966.80

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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.