Home / 10,109.60-13,964.85-9,166.46

Finding the Fourth Proportional to 10,109.60, 13,964.85 and 9,166.46

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Solution

The fourth proportional to 10,109.60, 13,964.85 and 9,166.46 is: 12,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.60 : 13,964.85 = 9,166.46 : x
  2. Step 2: Convert to fraction form
    10,109.60/13,964.85 = 9,166.46/x
  3. Step 3: Cross multiply
    10,109.60x = 13,964.85 × 9,166.46
  4. Step 4: Simplify right side
    10,109.60x = 128,008,169.11
  5. Step 5: Solve for x
    x = 128,008,169.11/10,109.60
  6. Step 6: Final answer
    x = 12,662.05

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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.