Home / 10,255.14-14,152.95-5,779.80

Finding the Fourth Proportional to 10,255.14, 14,152.95 and 5,779.80

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Solution

The fourth proportional to 10,255.14, 14,152.95 and 5,779.80 is: 7,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.14 : 14,152.95 = 5,779.80 : x
  2. Step 2: Convert to fraction form
    10,255.14/14,152.95 = 5,779.80/x
  3. Step 3: Cross multiply
    10,255.14x = 14,152.95 × 5,779.80
  4. Step 4: Simplify right side
    10,255.14x = 81,801,220.41
  5. Step 5: Solve for x
    x = 81,801,220.41/10,255.14
  6. Step 6: Final answer
    x = 7,976.61

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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.