Home / 13,565.84-18,722.52-8,261.42

Finding the Fourth Proportional to 13,565.84, 18,722.52 and 8,261.42

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Solution

The fourth proportional to 13,565.84, 18,722.52 and 8,261.42 is: 11,401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.84 : 18,722.52 = 8,261.42 : x
  2. Step 2: Convert to fraction form
    13,565.84/18,722.52 = 8,261.42/x
  3. Step 3: Cross multiply
    13,565.84x = 18,722.52 × 8,261.42
  4. Step 4: Simplify right side
    13,565.84x = 154,674,601.18
  5. Step 5: Solve for x
    x = 154,674,601.18/13,565.84
  6. Step 6: Final answer
    x = 11,401.77

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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.