Home / 13,784.06-19,013.49-12,019.88

Finding the Fourth Proportional to 13,784.06, 19,013.49 and 12,019.88

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Solution

The fourth proportional to 13,784.06, 19,013.49 and 12,019.88 is: 16,580.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.06 : 19,013.49 = 12,019.88 : x
  2. Step 2: Convert to fraction form
    13,784.06/19,013.49 = 12,019.88/x
  3. Step 3: Cross multiply
    13,784.06x = 19,013.49 × 12,019.88
  4. Step 4: Simplify right side
    13,784.06x = 228,539,868.18
  5. Step 5: Solve for x
    x = 228,539,868.18/13,784.06
  6. Step 6: Final answer
    x = 16,580.01

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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.