Home / 13,875.11-19,139.85-8,566.14

Finding the Fourth Proportional to 13,875.11, 19,139.85 and 8,566.14

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Solution

The fourth proportional to 13,875.11, 19,139.85 and 8,566.14 is: 11,816.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.11 : 19,139.85 = 8,566.14 : x
  2. Step 2: Convert to fraction form
    13,875.11/19,139.85 = 8,566.14/x
  3. Step 3: Cross multiply
    13,875.11x = 19,139.85 × 8,566.14
  4. Step 4: Simplify right side
    13,875.11x = 163,954,634.68
  5. Step 5: Solve for x
    x = 163,954,634.68/13,875.11
  6. Step 6: Final answer
    x = 11,816.46

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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.