Home / 13,135.83-19,700.70-4,368.39

Finding the Fourth Proportional to 13,135.83, 19,700.70 and 4,368.39

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Solution

The fourth proportional to 13,135.83, 19,700.70 and 4,368.39 is: 6,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.83 : 19,700.70 = 4,368.39 : x
  2. Step 2: Convert to fraction form
    13,135.83/19,700.70 = 4,368.39/x
  3. Step 3: Cross multiply
    13,135.83x = 19,700.70 × 4,368.39
  4. Step 4: Simplify right side
    13,135.83x = 86,060,340.87
  5. Step 5: Solve for x
    x = 86,060,340.87/13,135.83
  6. Step 6: Final answer
    x = 6,551.57

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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.