Home / 13,479.04-18,603.51-7,817.41

Finding the Fourth Proportional to 13,479.04, 18,603.51 and 7,817.41

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Solution

The fourth proportional to 13,479.04, 18,603.51 and 7,817.41 is: 10,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.04 : 18,603.51 = 7,817.41 : x
  2. Step 2: Convert to fraction form
    13,479.04/18,603.51 = 7,817.41/x
  3. Step 3: Cross multiply
    13,479.04x = 18,603.51 × 7,817.41
  4. Step 4: Simplify right side
    13,479.04x = 145,431,265.11
  5. Step 5: Solve for x
    x = 145,431,265.11/13,479.04
  6. Step 6: Final answer
    x = 10,789.44

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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.