Home / 11,409.92-15,756.56-10,788.65

Finding the Fourth Proportional to 11,409.92, 15,756.56 and 10,788.65

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Solution

The fourth proportional to 11,409.92, 15,756.56 and 10,788.65 is: 14,898.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.92 : 15,756.56 = 10,788.65 : x
  2. Step 2: Convert to fraction form
    11,409.92/15,756.56 = 10,788.65/x
  3. Step 3: Cross multiply
    11,409.92x = 15,756.56 × 10,788.65
  4. Step 4: Simplify right side
    11,409.92x = 169,992,011.04
  5. Step 5: Solve for x
    x = 169,992,011.04/11,409.92
  6. Step 6: Final answer
    x = 14,898.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.