Home / 19,810.38-29,715.57-6,662.76

Finding the Fourth Proportional to 19,810.38, 29,715.57 and 6,662.76

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Solution

The fourth proportional to 19,810.38, 29,715.57 and 6,662.76 is: 9,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.38 : 29,715.57 = 6,662.76 : x
  2. Step 2: Convert to fraction form
    19,810.38/29,715.57 = 6,662.76/x
  3. Step 3: Cross multiply
    19,810.38x = 29,715.57 × 6,662.76
  4. Step 4: Simplify right side
    19,810.38x = 197,987,711.17
  5. Step 5: Solve for x
    x = 197,987,711.17/19,810.38
  6. Step 6: Final answer
    x = 9,994.14

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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.