Home / 10,111.25-13,949.48-6,130.91

Finding the Fourth Proportional to 10,111.25, 13,949.48 and 6,130.91

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Solution

The fourth proportional to 10,111.25, 13,949.48 and 6,130.91 is: 8,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,111.25 : 13,949.48 = 6,130.91 : x
  2. Step 2: Convert to fraction form
    10,111.25/13,949.48 = 6,130.91/x
  3. Step 3: Cross multiply
    10,111.25x = 13,949.48 × 6,130.91
  4. Step 4: Simplify right side
    10,111.25x = 85,523,056.63
  5. Step 5: Solve for x
    x = 85,523,056.63/10,111.25
  6. Step 6: Final answer
    x = 8,458.21

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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.