Home / 13,937.05-19,221.87-12,254.95

Finding the Fourth Proportional to 13,937.05, 19,221.87 and 12,254.95

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Solution

The fourth proportional to 13,937.05, 19,221.87 and 12,254.95 is: 16,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.05 : 19,221.87 = 12,254.95 : x
  2. Step 2: Convert to fraction form
    13,937.05/19,221.87 = 12,254.95/x
  3. Step 3: Cross multiply
    13,937.05x = 19,221.87 × 12,254.95
  4. Step 4: Simplify right side
    13,937.05x = 235,563,055.76
  5. Step 5: Solve for x
    x = 235,563,055.76/13,937.05
  6. Step 6: Final answer
    x = 16,901.93

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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.