Home / 14,991.50-20,688.59-8,277.55

Finding the Fourth Proportional to 14,991.50, 20,688.59 and 8,277.55

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Solution

The fourth proportional to 14,991.50, 20,688.59 and 8,277.55 is: 11,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.50 : 20,688.59 = 8,277.55 : x
  2. Step 2: Convert to fraction form
    14,991.50/20,688.59 = 8,277.55/x
  3. Step 3: Cross multiply
    14,991.50x = 20,688.59 × 8,277.55
  4. Step 4: Simplify right side
    14,991.50x = 171,250,923.50
  5. Step 5: Solve for x
    x = 171,250,923.50/14,991.50
  6. Step 6: Final answer
    x = 11,423.20

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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.