Home / 16,803.40-25,207.28-5,115.12

Finding the Fourth Proportional to 16,803.40, 25,207.28 and 5,115.12

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Solution

The fourth proportional to 16,803.40, 25,207.28 and 5,115.12 is: 7,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.40 : 25,207.28 = 5,115.12 : x
  2. Step 2: Convert to fraction form
    16,803.40/25,207.28 = 5,115.12/x
  3. Step 3: Cross multiply
    16,803.40x = 25,207.28 × 5,115.12
  4. Step 4: Simplify right side
    16,803.40x = 128,938,262.07
  5. Step 5: Solve for x
    x = 128,938,262.07/16,803.40
  6. Step 6: Final answer
    x = 7,673.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.