Home / 10,143.06-15,199.98-4,291.62

Finding the Fourth Proportional to 10,143.06, 15,199.98 and 4,291.62

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Solution

The fourth proportional to 10,143.06, 15,199.98 and 4,291.62 is: 6,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.06 : 15,199.98 = 4,291.62 : x
  2. Step 2: Convert to fraction form
    10,143.06/15,199.98 = 4,291.62/x
  3. Step 3: Cross multiply
    10,143.06x = 15,199.98 × 4,291.62
  4. Step 4: Simplify right side
    10,143.06x = 65,232,538.17
  5. Step 5: Solve for x
    x = 65,232,538.17/10,143.06
  6. Step 6: Final answer
    x = 6,431.25

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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.