Home / 10,209.53-15,300.02-5,519.43

Finding the Fourth Proportional to 10,209.53, 15,300.02 and 5,519.43

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Solution

The fourth proportional to 10,209.53, 15,300.02 and 5,519.43 is: 8,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.53 : 15,300.02 = 5,519.43 : x
  2. Step 2: Convert to fraction form
    10,209.53/15,300.02 = 5,519.43/x
  3. Step 3: Cross multiply
    10,209.53x = 15,300.02 × 5,519.43
  4. Step 4: Simplify right side
    10,209.53x = 84,447,389.39
  5. Step 5: Solve for x
    x = 84,447,389.39/10,209.53
  6. Step 6: Final answer
    x = 8,271.43

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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.