Home / 9,114.09-12,578.34-5,337.03

Finding the Fourth Proportional to 9,114.09, 12,578.34 and 5,337.03

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Solution

The fourth proportional to 9,114.09, 12,578.34 and 5,337.03 is: 7,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.09 : 12,578.34 = 5,337.03 : x
  2. Step 2: Convert to fraction form
    9,114.09/12,578.34 = 5,337.03/x
  3. Step 3: Cross multiply
    9,114.09x = 12,578.34 × 5,337.03
  4. Step 4: Simplify right side
    9,114.09x = 67,130,977.93
  5. Step 5: Solve for x
    x = 67,130,977.93/9,114.09
  6. Step 6: Final answer
    x = 7,365.63

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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.