Home / 15,459.55-21,334.19-8,745.04

Finding the Fourth Proportional to 15,459.55, 21,334.19 and 8,745.04

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Solution

The fourth proportional to 15,459.55, 21,334.19 and 8,745.04 is: 12,068.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.55 : 21,334.19 = 8,745.04 : x
  2. Step 2: Convert to fraction form
    15,459.55/21,334.19 = 8,745.04/x
  3. Step 3: Cross multiply
    15,459.55x = 21,334.19 × 8,745.04
  4. Step 4: Simplify right side
    15,459.55x = 186,568,344.92
  5. Step 5: Solve for x
    x = 186,568,344.92/15,459.55
  6. Step 6: Final answer
    x = 12,068.16

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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.