Home / 14,891.47-20,551.86-8,518.65

Finding the Fourth Proportional to 14,891.47, 20,551.86 and 8,518.65

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Solution

The fourth proportional to 14,891.47, 20,551.86 and 8,518.65 is: 11,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,891.47 : 20,551.86 = 8,518.65 : x
  2. Step 2: Convert to fraction form
    14,891.47/20,551.86 = 8,518.65/x
  3. Step 3: Cross multiply
    14,891.47x = 20,551.86 × 8,518.65
  4. Step 4: Simplify right side
    14,891.47x = 175,074,102.19
  5. Step 5: Solve for x
    x = 175,074,102.19/14,891.47
  6. Step 6: Final answer
    x = 11,756.67

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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.