Home / 14,007.74-19,330.70-7,720.11

Finding the Fourth Proportional to 14,007.74, 19,330.70 and 7,720.11

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Solution

The fourth proportional to 14,007.74, 19,330.70 and 7,720.11 is: 10,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.74 : 19,330.70 = 7,720.11 : x
  2. Step 2: Convert to fraction form
    14,007.74/19,330.70 = 7,720.11/x
  3. Step 3: Cross multiply
    14,007.74x = 19,330.70 × 7,720.11
  4. Step 4: Simplify right side
    14,007.74x = 149,235,091.78
  5. Step 5: Solve for x
    x = 149,235,091.78/14,007.74
  6. Step 6: Final answer
    x = 10,653.76

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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.