Home / 10,242.49-15,368.75-3,669.18

Finding the Fourth Proportional to 10,242.49, 15,368.75 and 3,669.18

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Solution

The fourth proportional to 10,242.49, 15,368.75 and 3,669.18 is: 5,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,242.49 : 15,368.75 = 3,669.18 : x
  2. Step 2: Convert to fraction form
    10,242.49/15,368.75 = 3,669.18/x
  3. Step 3: Cross multiply
    10,242.49x = 15,368.75 × 3,669.18
  4. Step 4: Simplify right side
    10,242.49x = 56,390,719.30
  5. Step 5: Solve for x
    x = 56,390,719.30/10,242.49
  6. Step 6: Final answer
    x = 5,505.57

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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.