Home / 10,144.32-15,215.40-4,806.21

Finding the Fourth Proportional to 10,144.32, 15,215.40 and 4,806.21

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Solution

The fourth proportional to 10,144.32, 15,215.40 and 4,806.21 is: 7,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.32 : 15,215.40 = 4,806.21 : x
  2. Step 2: Convert to fraction form
    10,144.32/15,215.40 = 4,806.21/x
  3. Step 3: Cross multiply
    10,144.32x = 15,215.40 × 4,806.21
  4. Step 4: Simplify right side
    10,144.32x = 73,128,407.63
  5. Step 5: Solve for x
    x = 73,128,407.63/10,144.32
  6. Step 6: Final answer
    x = 7,208.80

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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.