Home / 10,483.64-15,721.40-4,242.06

Finding the Fourth Proportional to 10,483.64, 15,721.40 and 4,242.06

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Solution

The fourth proportional to 10,483.64, 15,721.40 and 4,242.06 is: 6,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,483.64 : 15,721.40 = 4,242.06 : x
  2. Step 2: Convert to fraction form
    10,483.64/15,721.40 = 4,242.06/x
  3. Step 3: Cross multiply
    10,483.64x = 15,721.40 × 4,242.06
  4. Step 4: Simplify right side
    10,483.64x = 66,691,122.08
  5. Step 5: Solve for x
    x = 66,691,122.08/10,483.64
  6. Step 6: Final answer
    x = 6,361.45

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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.