Home / 13,528.50-20,284.65-5,621.49

Finding the Fourth Proportional to 13,528.50, 20,284.65 and 5,621.49

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Solution

The fourth proportional to 13,528.50, 20,284.65 and 5,621.49 is: 8,428.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.50 : 20,284.65 = 5,621.49 : x
  2. Step 2: Convert to fraction form
    13,528.50/20,284.65 = 5,621.49/x
  3. Step 3: Cross multiply
    13,528.50x = 20,284.65 × 5,621.49
  4. Step 4: Simplify right side
    13,528.50x = 114,029,957.13
  5. Step 5: Solve for x
    x = 114,029,957.13/13,528.50
  6. Step 6: Final answer
    x = 8,428.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.