Home / 13,242.50-19,851.21-4,916.87

Finding the Fourth Proportional to 13,242.50, 19,851.21 and 4,916.87

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Solution

The fourth proportional to 13,242.50, 19,851.21 and 4,916.87 is: 7,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.50 : 19,851.21 = 4,916.87 : x
  2. Step 2: Convert to fraction form
    13,242.50/19,851.21 = 4,916.87/x
  3. Step 3: Cross multiply
    13,242.50x = 19,851.21 × 4,916.87
  4. Step 4: Simplify right side
    13,242.50x = 97,605,719.66
  5. Step 5: Solve for x
    x = 97,605,719.66/13,242.50
  6. Step 6: Final answer
    x = 7,370.64

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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.