Home / 13,849.55-19,113.05-7,881.76

Finding the Fourth Proportional to 13,849.55, 19,113.05 and 7,881.76

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Solution

The fourth proportional to 13,849.55, 19,113.05 and 7,881.76 is: 10,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.55 : 19,113.05 = 7,881.76 : x
  2. Step 2: Convert to fraction form
    13,849.55/19,113.05 = 7,881.76/x
  3. Step 3: Cross multiply
    13,849.55x = 19,113.05 × 7,881.76
  4. Step 4: Simplify right side
    13,849.55x = 150,644,337.99
  5. Step 5: Solve for x
    x = 150,644,337.99/13,849.55
  6. Step 6: Final answer
    x = 10,877.20

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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.