Home / 13,702.79-20,557.22-4,343.36

Finding the Fourth Proportional to 13,702.79, 20,557.22 and 4,343.36

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Solution

The fourth proportional to 13,702.79, 20,557.22 and 4,343.36 is: 6,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.79 : 20,557.22 = 4,343.36 : x
  2. Step 2: Convert to fraction form
    13,702.79/20,557.22 = 4,343.36/x
  3. Step 3: Cross multiply
    13,702.79x = 20,557.22 × 4,343.36
  4. Step 4: Simplify right side
    13,702.79x = 89,287,468.22
  5. Step 5: Solve for x
    x = 89,287,468.22/13,702.79
  6. Step 6: Final answer
    x = 6,516.01

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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.