Home / 13,822.42-19,061.54-8,777.74

Finding the Fourth Proportional to 13,822.42, 19,061.54 and 8,777.74

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Solution

The fourth proportional to 13,822.42, 19,061.54 and 8,777.74 is: 12,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.42 : 19,061.54 = 8,777.74 : x
  2. Step 2: Convert to fraction form
    13,822.42/19,061.54 = 8,777.74/x
  3. Step 3: Cross multiply
    13,822.42x = 19,061.54 × 8,777.74
  4. Step 4: Simplify right side
    13,822.42x = 167,317,242.12
  5. Step 5: Solve for x
    x = 167,317,242.12/13,822.42
  6. Step 6: Final answer
    x = 12,104.77

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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.