Home / 14,007.18-19,330.11-7,719.42

Finding the Fourth Proportional to 14,007.18, 19,330.11 and 7,719.42

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Solution

The fourth proportional to 14,007.18, 19,330.11 and 7,719.42 is: 10,652.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.18 : 19,330.11 = 7,719.42 : x
  2. Step 2: Convert to fraction form
    14,007.18/19,330.11 = 7,719.42/x
  3. Step 3: Cross multiply
    14,007.18x = 19,330.11 × 7,719.42
  4. Step 4: Simplify right side
    14,007.18x = 149,217,237.74
  5. Step 5: Solve for x
    x = 149,217,237.74/14,007.18
  6. Step 6: Final answer
    x = 10,652.91

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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.