Home / 13,891.71-19,170.41-7,518.16

Finding the Fourth Proportional to 13,891.71, 19,170.41 and 7,518.16

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Solution

The fourth proportional to 13,891.71, 19,170.41 and 7,518.16 is: 10,374.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.71 : 19,170.41 = 7,518.16 : x
  2. Step 2: Convert to fraction form
    13,891.71/19,170.41 = 7,518.16/x
  3. Step 3: Cross multiply
    13,891.71x = 19,170.41 × 7,518.16
  4. Step 4: Simplify right side
    13,891.71x = 144,126,196.02
  5. Step 5: Solve for x
    x = 144,126,196.02/13,891.71
  6. Step 6: Final answer
    x = 10,374.98

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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.