Home / 9,163.79-12,646.43-5,184.80

Finding the Fourth Proportional to 9,163.79, 12,646.43 and 5,184.80

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Solution

The fourth proportional to 9,163.79, 12,646.43 and 5,184.80 is: 7,155.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.79 : 12,646.43 = 5,184.80 : x
  2. Step 2: Convert to fraction form
    9,163.79/12,646.43 = 5,184.80/x
  3. Step 3: Cross multiply
    9,163.79x = 12,646.43 × 5,184.80
  4. Step 4: Simplify right side
    9,163.79x = 65,569,210.26
  5. Step 5: Solve for x
    x = 65,569,210.26/9,163.79
  6. Step 6: Final answer
    x = 7,155.25

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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.