Home / 14,640.32-21,960.48-4,779.66

Finding the Fourth Proportional to 14,640.32, 21,960.48 and 4,779.66

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Solution

The fourth proportional to 14,640.32, 21,960.48 and 4,779.66 is: 7,169.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.32 : 21,960.48 = 4,779.66 : x
  2. Step 2: Convert to fraction form
    14,640.32/21,960.48 = 4,779.66/x
  3. Step 3: Cross multiply
    14,640.32x = 21,960.48 × 4,779.66
  4. Step 4: Simplify right side
    14,640.32x = 104,963,627.84
  5. Step 5: Solve for x
    x = 104,963,627.84/14,640.32
  6. Step 6: Final answer
    x = 7,169.49

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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.