Home / 12,400.17-17,109.27-7,364.40

Finding the Fourth Proportional to 12,400.17, 17,109.27 and 7,364.40

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Solution

The fourth proportional to 12,400.17, 17,109.27 and 7,364.40 is: 10,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.17 : 17,109.27 = 7,364.40 : x
  2. Step 2: Convert to fraction form
    12,400.17/17,109.27 = 7,364.40/x
  3. Step 3: Cross multiply
    12,400.17x = 17,109.27 × 7,364.40
  4. Step 4: Simplify right side
    12,400.17x = 125,999,507.99
  5. Step 5: Solve for x
    x = 125,999,507.99/12,400.17
  6. Step 6: Final answer
    x = 10,161.11

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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.