Home / 9,328.86-12,873.81-5,137.11

Finding the Fourth Proportional to 9,328.86, 12,873.81 and 5,137.11

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Solution

The fourth proportional to 9,328.86, 12,873.81 and 5,137.11 is: 7,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.86 : 12,873.81 = 5,137.11 : x
  2. Step 2: Convert to fraction form
    9,328.86/12,873.81 = 5,137.11/x
  3. Step 3: Cross multiply
    9,328.86x = 12,873.81 × 5,137.11
  4. Step 4: Simplify right side
    9,328.86x = 66,134,197.35
  5. Step 5: Solve for x
    x = 66,134,197.35/9,328.86
  6. Step 6: Final answer
    x = 7,089.20

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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.