Home / 14,006.76-19,329.20-7,719

Finding the Fourth Proportional to 14,006.76, 19,329.20 and 7,719

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Solution

The fourth proportional to 14,006.76, 19,329.20 and 7,719 is: 10,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.76 : 19,329.20 = 7,719 : x
  2. Step 2: Convert to fraction form
    14,006.76/19,329.20 = 7,719/x
  3. Step 3: Cross multiply
    14,006.76x = 19,329.20 × 7,719
  4. Step 4: Simplify right side
    14,006.76x = 149,202,094.80
  5. Step 5: Solve for x
    x = 149,202,094.80/14,006.76
  6. Step 6: Final answer
    x = 10,652.15

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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.