Home / 14,007.69-19,330.70-8,039.21

Finding the Fourth Proportional to 14,007.69, 19,330.70 and 8,039.21

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Solution

The fourth proportional to 14,007.69, 19,330.70 and 8,039.21 is: 11,094.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.69 : 19,330.70 = 8,039.21 : x
  2. Step 2: Convert to fraction form
    14,007.69/19,330.70 = 8,039.21/x
  3. Step 3: Cross multiply
    14,007.69x = 19,330.70 × 8,039.21
  4. Step 4: Simplify right side
    14,007.69x = 155,403,419.90
  5. Step 5: Solve for x
    x = 155,403,419.90/14,007.69
  6. Step 6: Final answer
    x = 11,094.15

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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.