Home / 10,333.99-15,516.78-9,111.70

Finding the Fourth Proportional to 10,333.99, 15,516.78 and 9,111.70

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Solution

The fourth proportional to 10,333.99, 15,516.78 and 9,111.70 is: 13,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,333.99 : 15,516.78 = 9,111.70 : x
  2. Step 2: Convert to fraction form
    10,333.99/15,516.78 = 9,111.70/x
  3. Step 3: Cross multiply
    10,333.99x = 15,516.78 × 9,111.70
  4. Step 4: Simplify right side
    10,333.99x = 141,384,244.33
  5. Step 5: Solve for x
    x = 141,384,244.33/10,333.99
  6. Step 6: Final answer
    x = 13,681.48

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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.