Home / 14,007.88-19,330.93-7,720.25

Finding the Fourth Proportional to 14,007.88, 19,330.93 and 7,720.25

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Solution

The fourth proportional to 14,007.88, 19,330.93 and 7,720.25 is: 10,653.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.88 : 19,330.93 = 7,720.25 : x
  2. Step 2: Convert to fraction form
    14,007.88/19,330.93 = 7,720.25/x
  3. Step 3: Cross multiply
    14,007.88x = 19,330.93 × 7,720.25
  4. Step 4: Simplify right side
    14,007.88x = 149,239,612.33
  5. Step 5: Solve for x
    x = 149,239,612.33/14,007.88
  6. Step 6: Final answer
    x = 10,653.98

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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.