Home / 10,558.80-15,830.20-5,368.40

Finding the Fourth Proportional to 10,558.80, 15,830.20 and 5,368.40

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Solution

The fourth proportional to 10,558.80, 15,830.20 and 5,368.40 is: 8,048.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.80 : 15,830.20 = 5,368.40 : x
  2. Step 2: Convert to fraction form
    10,558.80/15,830.20 = 5,368.40/x
  3. Step 3: Cross multiply
    10,558.80x = 15,830.20 × 5,368.40
  4. Step 4: Simplify right side
    10,558.80x = 84,982,845.68
  5. Step 5: Solve for x
    x = 84,982,845.68/10,558.80
  6. Step 6: Final answer
    x = 8,048.53

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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.