Home / 10,869.90-16,298.78-5,019.27

Finding the Fourth Proportional to 10,869.90, 16,298.78 and 5,019.27

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Solution

The fourth proportional to 10,869.90, 16,298.78 and 5,019.27 is: 7,526.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.90 : 16,298.78 = 5,019.27 : x
  2. Step 2: Convert to fraction form
    10,869.90/16,298.78 = 5,019.27/x
  3. Step 3: Cross multiply
    10,869.90x = 16,298.78 × 5,019.27
  4. Step 4: Simplify right side
    10,869.90x = 81,807,952.39
  5. Step 5: Solve for x
    x = 81,807,952.39/10,869.90
  6. Step 6: Final answer
    x = 7,526.10

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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.