Home / 10,985.70-16,487.42-5,722.32

Finding the Fourth Proportional to 10,985.70, 16,487.42 and 5,722.32

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Solution

The fourth proportional to 10,985.70, 16,487.42 and 5,722.32 is: 8,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.70 : 16,487.42 = 5,722.32 : x
  2. Step 2: Convert to fraction form
    10,985.70/16,487.42 = 5,722.32/x
  3. Step 3: Cross multiply
    10,985.70x = 16,487.42 × 5,722.32
  4. Step 4: Simplify right side
    10,985.70x = 94,346,293.21
  5. Step 5: Solve for x
    x = 94,346,293.21/10,985.70
  6. Step 6: Final answer
    x = 8,588.10

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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.