Home / 13,881.55-19,156.30-8,503.15

Finding the Fourth Proportional to 13,881.55, 19,156.30 and 8,503.15

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Solution

The fourth proportional to 13,881.55, 19,156.30 and 8,503.15 is: 11,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.55 : 19,156.30 = 8,503.15 : x
  2. Step 2: Convert to fraction form
    13,881.55/19,156.30 = 8,503.15/x
  3. Step 3: Cross multiply
    13,881.55x = 19,156.30 × 8,503.15
  4. Step 4: Simplify right side
    13,881.55x = 162,888,849.83
  5. Step 5: Solve for x
    x = 162,888,849.83/13,881.55
  6. Step 6: Final answer
    x = 11,734.20

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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.