Home / 14,007.67-19,330.59-7,720.05

Finding the Fourth Proportional to 14,007.67, 19,330.59 and 7,720.05

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Solution

The fourth proportional to 14,007.67, 19,330.59 and 7,720.05 is: 10,653.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.67 : 19,330.59 = 7,720.05 : x
  2. Step 2: Convert to fraction form
    14,007.67/19,330.59 = 7,720.05/x
  3. Step 3: Cross multiply
    14,007.67x = 19,330.59 × 7,720.05
  4. Step 4: Simplify right side
    14,007.67x = 149,233,121.33
  5. Step 5: Solve for x
    x = 149,233,121.33/14,007.67
  6. Step 6: Final answer
    x = 10,653.67

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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.