Home / 14,121.96-19,487.40-7,834.76

Finding the Fourth Proportional to 14,121.96, 19,487.40 and 7,834.76

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Solution

The fourth proportional to 14,121.96, 19,487.40 and 7,834.76 is: 10,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.96 : 19,487.40 = 7,834.76 : x
  2. Step 2: Convert to fraction form
    14,121.96/19,487.40 = 7,834.76/x
  3. Step 3: Cross multiply
    14,121.96x = 19,487.40 × 7,834.76
  4. Step 4: Simplify right side
    14,121.96x = 152,679,102.02
  5. Step 5: Solve for x
    x = 152,679,102.02/14,121.96
  6. Step 6: Final answer
    x = 10,811.47

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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.