Home / 10,330.49-15,511.53-9,108.20

Finding the Fourth Proportional to 10,330.49, 15,511.53 and 9,108.20

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Solution

The fourth proportional to 10,330.49, 15,511.53 and 9,108.20 is: 13,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.49 : 15,511.53 = 9,108.20 : x
  2. Step 2: Convert to fraction form
    10,330.49/15,511.53 = 9,108.20/x
  3. Step 3: Cross multiply
    10,330.49x = 15,511.53 × 9,108.20
  4. Step 4: Simplify right side
    10,330.49x = 141,282,039.99
  5. Step 5: Solve for x
    x = 141,282,039.99/10,330.49
  6. Step 6: Final answer
    x = 13,676.23

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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.