Home / 15,133.62-20,884.29-8,328.05

Finding the Fourth Proportional to 15,133.62, 20,884.29 and 8,328.05

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Solution

The fourth proportional to 15,133.62, 20,884.29 and 8,328.05 is: 11,492.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133.62 : 20,884.29 = 8,328.05 : x
  2. Step 2: Convert to fraction form
    15,133.62/20,884.29 = 8,328.05/x
  3. Step 3: Cross multiply
    15,133.62x = 20,884.29 × 8,328.05
  4. Step 4: Simplify right side
    15,133.62x = 173,925,479.16
  5. Step 5: Solve for x
    x = 173,925,479.16/15,133.62
  6. Step 6: Final answer
    x = 11,492.66

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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.