Home / 18,664.11-28,007.10-6,985.53

Finding the Fourth Proportional to 18,664.11, 28,007.10 and 6,985.53

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Solution

The fourth proportional to 18,664.11, 28,007.10 and 6,985.53 is: 10,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.11 : 28,007.10 = 6,985.53 : x
  2. Step 2: Convert to fraction form
    18,664.11/28,007.10 = 6,985.53/x
  3. Step 3: Cross multiply
    18,664.11x = 28,007.10 × 6,985.53
  4. Step 4: Simplify right side
    18,664.11x = 195,644,437.26
  5. Step 5: Solve for x
    x = 195,644,437.26/18,664.11
  6. Step 6: Final answer
    x = 10,482.39

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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.