Home / 10,109.04-13,964.09-9,165.89

Finding the Fourth Proportional to 10,109.04, 13,964.09 and 9,165.89

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Solution

The fourth proportional to 10,109.04, 13,964.09 and 9,165.89 is: 12,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.04 : 13,964.09 = 9,165.89 : x
  2. Step 2: Convert to fraction form
    10,109.04/13,964.09 = 9,165.89/x
  3. Step 3: Cross multiply
    10,109.04x = 13,964.09 × 9,165.89
  4. Step 4: Simplify right side
    10,109.04x = 127,993,197.24
  5. Step 5: Solve for x
    x = 127,993,197.24/10,109.04
  6. Step 6: Final answer
    x = 12,661.26

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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.