Home / 10,403.28-15,607.68-3,008.36

Finding the Fourth Proportional to 10,403.28, 15,607.68 and 3,008.36

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Solution

The fourth proportional to 10,403.28, 15,607.68 and 3,008.36 is: 4,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.28 : 15,607.68 = 3,008.36 : x
  2. Step 2: Convert to fraction form
    10,403.28/15,607.68 = 3,008.36/x
  3. Step 3: Cross multiply
    10,403.28x = 15,607.68 × 3,008.36
  4. Step 4: Simplify right side
    10,403.28x = 46,953,520.20
  5. Step 5: Solve for x
    x = 46,953,520.20/10,403.28
  6. Step 6: Final answer
    x = 4,513.34

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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.