Home / 10,886.74-15,029.86-8,329.68

Finding the Fourth Proportional to 10,886.74, 15,029.86 and 8,329.68

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Solution

The fourth proportional to 10,886.74, 15,029.86 and 8,329.68 is: 11,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.74 : 15,029.86 = 8,329.68 : x
  2. Step 2: Convert to fraction form
    10,886.74/15,029.86 = 8,329.68/x
  3. Step 3: Cross multiply
    10,886.74x = 15,029.86 × 8,329.68
  4. Step 4: Simplify right side
    10,886.74x = 125,193,924.24
  5. Step 5: Solve for x
    x = 125,193,924.24/10,886.74
  6. Step 6: Final answer
    x = 11,499.67

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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.