Home / 10,318.74-14,239.89-5,603.04

Finding the Fourth Proportional to 10,318.74, 14,239.89 and 5,603.04

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Solution

The fourth proportional to 10,318.74, 14,239.89 and 5,603.04 is: 7,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.74 : 14,239.89 = 5,603.04 : x
  2. Step 2: Convert to fraction form
    10,318.74/14,239.89 = 5,603.04/x
  3. Step 3: Cross multiply
    10,318.74x = 14,239.89 × 5,603.04
  4. Step 4: Simplify right side
    10,318.74x = 79,786,673.27
  5. Step 5: Solve for x
    x = 79,786,673.27/10,318.74
  6. Step 6: Final answer
    x = 7,732.21

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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.