Home / 10,114.75-13,957.44-5,637.78

Finding the Fourth Proportional to 10,114.75, 13,957.44 and 5,637.78

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Solution

The fourth proportional to 10,114.75, 13,957.44 and 5,637.78 is: 7,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114.75 : 13,957.44 = 5,637.78 : x
  2. Step 2: Convert to fraction form
    10,114.75/13,957.44 = 5,637.78/x
  3. Step 3: Cross multiply
    10,114.75x = 13,957.44 × 5,637.78
  4. Step 4: Simplify right side
    10,114.75x = 78,688,976.08
  5. Step 5: Solve for x
    x = 78,688,976.08/10,114.75
  6. Step 6: Final answer
    x = 7,779.63

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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.