Home / 13,320.50-19,961.70-9,782.76

Finding the Fourth Proportional to 13,320.50, 19,961.70 and 9,782.76

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Solution

The fourth proportional to 13,320.50, 19,961.70 and 9,782.76 is: 14,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.50 : 19,961.70 = 9,782.76 : x
  2. Step 2: Convert to fraction form
    13,320.50/19,961.70 = 9,782.76/x
  3. Step 3: Cross multiply
    13,320.50x = 19,961.70 × 9,782.76
  4. Step 4: Simplify right side
    13,320.50x = 195,280,520.29
  5. Step 5: Solve for x
    x = 195,280,520.29/13,320.50
  6. Step 6: Final answer
    x = 14,660.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.