Home / 10,266.40-15,400.24-3,509.12

Finding the Fourth Proportional to 10,266.40, 15,400.24 and 3,509.12

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Solution

The fourth proportional to 10,266.40, 15,400.24 and 3,509.12 is: 5,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,266.40 : 15,400.24 = 3,509.12 : x
  2. Step 2: Convert to fraction form
    10,266.40/15,400.24 = 3,509.12/x
  3. Step 3: Cross multiply
    10,266.40x = 15,400.24 × 3,509.12
  4. Step 4: Simplify right side
    10,266.40x = 54,041,290.19
  5. Step 5: Solve for x
    x = 54,041,290.19/10,266.40
  6. Step 6: Final answer
    x = 5,263.90

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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.