Home / 13,985.11-19,295.10-8,015.61

Finding the Fourth Proportional to 13,985.11, 19,295.10 and 8,015.61

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Solution

The fourth proportional to 13,985.11, 19,295.10 and 8,015.61 is: 11,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.11 : 19,295.10 = 8,015.61 : x
  2. Step 2: Convert to fraction form
    13,985.11/19,295.10 = 8,015.61/x
  3. Step 3: Cross multiply
    13,985.11x = 19,295.10 × 8,015.61
  4. Step 4: Simplify right side
    13,985.11x = 154,661,996.51
  5. Step 5: Solve for x
    x = 154,661,996.51/13,985.11
  6. Step 6: Final answer
    x = 11,059.05

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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.