Home / 10,350.14-15,511.23-7,421.99

Finding the Fourth Proportional to 10,350.14, 15,511.23 and 7,421.99

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Solution

The fourth proportional to 10,350.14, 15,511.23 and 7,421.99 is: 11,122.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,350.14 : 15,511.23 = 7,421.99 : x
  2. Step 2: Convert to fraction form
    10,350.14/15,511.23 = 7,421.99/x
  3. Step 3: Cross multiply
    10,350.14x = 15,511.23 × 7,421.99
  4. Step 4: Simplify right side
    10,350.14x = 115,124,116.39
  5. Step 5: Solve for x
    x = 115,124,116.39/10,350.14
  6. Step 6: Final answer
    x = 11,122.96

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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.