Home / 14,402.72-21,603.36-5,639.24

Finding the Fourth Proportional to 14,402.72, 21,603.36 and 5,639.24

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Solution

The fourth proportional to 14,402.72, 21,603.36 and 5,639.24 is: 8,458.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,402.72 : 21,603.36 = 5,639.24 : x
  2. Step 2: Convert to fraction form
    14,402.72/21,603.36 = 5,639.24/x
  3. Step 3: Cross multiply
    14,402.72x = 21,603.36 × 5,639.24
  4. Step 4: Simplify right side
    14,402.72x = 121,826,531.85
  5. Step 5: Solve for x
    x = 121,826,531.85/14,402.72
  6. Step 6: Final answer
    x = 8,458.58

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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.