Home / 10,134.35-13,981.40-6,771.84

Finding the Fourth Proportional to 10,134.35, 13,981.40 and 6,771.84

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Solution

The fourth proportional to 10,134.35, 13,981.40 and 6,771.84 is: 9,342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.35 : 13,981.40 = 6,771.84 : x
  2. Step 2: Convert to fraction form
    10,134.35/13,981.40 = 6,771.84/x
  3. Step 3: Cross multiply
    10,134.35x = 13,981.40 × 6,771.84
  4. Step 4: Simplify right side
    10,134.35x = 94,679,769.92
  5. Step 5: Solve for x
    x = 94,679,769.92/10,134.35
  6. Step 6: Final answer
    x = 9,342.46

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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.