Home / 10,330.40-15,495.77-5,409.65

Finding the Fourth Proportional to 10,330.40, 15,495.77 and 5,409.65

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Solution

The fourth proportional to 10,330.40, 15,495.77 and 5,409.65 is: 8,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.40 : 15,495.77 = 5,409.65 : x
  2. Step 2: Convert to fraction form
    10,330.40/15,495.77 = 5,409.65/x
  3. Step 3: Cross multiply
    10,330.40x = 15,495.77 × 5,409.65
  4. Step 4: Simplify right side
    10,330.40x = 83,826,587.65
  5. Step 5: Solve for x
    x = 83,826,587.65/10,330.40
  6. Step 6: Final answer
    x = 8,114.56

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1.5x scale

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.