Home / 14,404.80-21,603.60-5,518.20

Finding the Fourth Proportional to 14,404.80, 21,603.60 and 5,518.20

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Solution

The fourth proportional to 14,404.80, 21,603.60 and 5,518.20 is: 8,275.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,404.80 : 21,603.60 = 5,518.20 : x
  2. Step 2: Convert to fraction form
    14,404.80/21,603.60 = 5,518.20/x
  3. Step 3: Cross multiply
    14,404.80x = 21,603.60 × 5,518.20
  4. Step 4: Simplify right side
    14,404.80x = 119,212,985.52
  5. Step 5: Solve for x
    x = 119,212,985.52/14,404.80
  6. Step 6: Final answer
    x = 8,275.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.