Home / 10,215.23-15,289.97-6,910.12

Finding the Fourth Proportional to 10,215.23, 15,289.97 and 6,910.12

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Solution

The fourth proportional to 10,215.23, 15,289.97 and 6,910.12 is: 10,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.23 : 15,289.97 = 6,910.12 : x
  2. Step 2: Convert to fraction form
    10,215.23/15,289.97 = 6,910.12/x
  3. Step 3: Cross multiply
    10,215.23x = 15,289.97 × 6,910.12
  4. Step 4: Simplify right side
    10,215.23x = 105,655,468.32
  5. Step 5: Solve for x
    x = 105,655,468.32/10,215.23
  6. Step 6: Final answer
    x = 10,342.94

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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.