Home / 13,784.56-19,014.16-12,020.40

Finding the Fourth Proportional to 13,784.56, 19,014.16 and 12,020.40

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Solution

The fourth proportional to 13,784.56, 19,014.16 and 12,020.40 is: 16,580.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.56 : 19,014.16 = 12,020.40 : x
  2. Step 2: Convert to fraction form
    13,784.56/19,014.16 = 12,020.40/x
  3. Step 3: Cross multiply
    13,784.56x = 19,014.16 × 12,020.40
  4. Step 4: Simplify right side
    13,784.56x = 228,557,808.86
  5. Step 5: Solve for x
    x = 228,557,808.86/13,784.56
  6. Step 6: Final answer
    x = 16,580.71

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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.