Home / 10,113.08-13,969.68-9,169.94

Finding the Fourth Proportional to 10,113.08, 13,969.68 and 9,169.94

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Solution

The fourth proportional to 10,113.08, 13,969.68 and 9,169.94 is: 12,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.08 : 13,969.68 = 9,169.94 : x
  2. Step 2: Convert to fraction form
    10,113.08/13,969.68 = 9,169.94/x
  3. Step 3: Cross multiply
    10,113.08x = 13,969.68 × 9,169.94
  4. Step 4: Simplify right side
    10,113.08x = 128,101,127.42
  5. Step 5: Solve for x
    x = 128,101,127.42/10,113.08
  6. Step 6: Final answer
    x = 12,666.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.