Home / 15,162.58-20,923.46-8,788.67

Finding the Fourth Proportional to 15,162.58, 20,923.46 and 8,788.67

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Solution

The fourth proportional to 15,162.58, 20,923.46 and 8,788.67 is: 12,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,162.58 : 20,923.46 = 8,788.67 : x
  2. Step 2: Convert to fraction form
    15,162.58/20,923.46 = 8,788.67/x
  3. Step 3: Cross multiply
    15,162.58x = 20,923.46 × 8,788.67
  4. Step 4: Simplify right side
    15,162.58x = 183,889,386.01
  5. Step 5: Solve for x
    x = 183,889,386.01/15,162.58
  6. Step 6: Final answer
    x = 12,127.84

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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.