Home / 14,578.02-20,117.79-8,204.40

Finding the Fourth Proportional to 14,578.02, 20,117.79 and 8,204.40

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Solution

The fourth proportional to 14,578.02, 20,117.79 and 8,204.40 is: 11,322.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,578.02 : 20,117.79 = 8,204.40 : x
  2. Step 2: Convert to fraction form
    14,578.02/20,117.79 = 8,204.40/x
  3. Step 3: Cross multiply
    14,578.02x = 20,117.79 × 8,204.40
  4. Step 4: Simplify right side
    14,578.02x = 165,054,396.28
  5. Step 5: Solve for x
    x = 165,054,396.28/14,578.02
  6. Step 6: Final answer
    x = 11,322.14

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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.