Home / 10,017.58-13,838.40-9,119.82

Finding the Fourth Proportional to 10,017.58, 13,838.40 and 9,119.82

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Solution

The fourth proportional to 10,017.58, 13,838.40 and 9,119.82 is: 12,598.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,017.58 : 13,838.40 = 9,119.82 : x
  2. Step 2: Convert to fraction form
    10,017.58/13,838.40 = 9,119.82/x
  3. Step 3: Cross multiply
    10,017.58x = 13,838.40 × 9,119.82
  4. Step 4: Simplify right side
    10,017.58x = 126,203,717.09
  5. Step 5: Solve for x
    x = 126,203,717.09/10,017.58
  6. Step 6: Final answer
    x = 12,598.22

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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.