Home / 18,307.16-25,284.64-12,328.44

Finding the Fourth Proportional to 18,307.16, 25,284.64 and 12,328.44

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Solution

The fourth proportional to 18,307.16, 25,284.64 and 12,328.44 is: 17,027.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.16 : 25,284.64 = 12,328.44 : x
  2. Step 2: Convert to fraction form
    18,307.16/25,284.64 = 12,328.44/x
  3. Step 3: Cross multiply
    18,307.16x = 25,284.64 × 12,328.44
  4. Step 4: Simplify right side
    18,307.16x = 311,720,167.16
  5. Step 5: Solve for x
    x = 311,720,167.16/18,307.16
  6. Step 6: Final answer
    x = 17,027.23

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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.