Home / 14,007.66-19,330.57-7,720.03

Finding the Fourth Proportional to 14,007.66, 19,330.57 and 7,720.03

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Solution

The fourth proportional to 14,007.66, 19,330.57 and 7,720.03 is: 10,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.66 : 19,330.57 = 7,720.03 : x
  2. Step 2: Convert to fraction form
    14,007.66/19,330.57 = 7,720.03/x
  3. Step 3: Cross multiply
    14,007.66x = 19,330.57 × 7,720.03
  4. Step 4: Simplify right side
    14,007.66x = 149,232,614.13
  5. Step 5: Solve for x
    x = 149,232,614.13/14,007.66
  6. Step 6: Final answer
    x = 10,653.65

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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.