Home / 10,069.08-15,103.70-3,143.80

Finding the Fourth Proportional to 10,069.08, 15,103.70 and 3,143.80

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Solution

The fourth proportional to 10,069.08, 15,103.70 and 3,143.80 is: 4,715.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,069.08 : 15,103.70 = 3,143.80 : x
  2. Step 2: Convert to fraction form
    10,069.08/15,103.70 = 3,143.80/x
  3. Step 3: Cross multiply
    10,069.08x = 15,103.70 × 3,143.80
  4. Step 4: Simplify right side
    10,069.08x = 47,483,012.06
  5. Step 5: Solve for x
    x = 47,483,012.06/10,069.08
  6. Step 6: Final answer
    x = 4,715.72

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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.