Home / 10,289.43-15,409.54-9,772.75

Finding the Fourth Proportional to 10,289.43, 15,409.54 and 9,772.75

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Solution

The fourth proportional to 10,289.43, 15,409.54 and 9,772.75 is: 14,635.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.43 : 15,409.54 = 9,772.75 : x
  2. Step 2: Convert to fraction form
    10,289.43/15,409.54 = 9,772.75/x
  3. Step 3: Cross multiply
    10,289.43x = 15,409.54 × 9,772.75
  4. Step 4: Simplify right side
    10,289.43x = 150,593,613.51
  5. Step 5: Solve for x
    x = 150,593,613.51/10,289.43
  6. Step 6: Final answer
    x = 14,635.76

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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.