Home / 17,328.72-25,995.80-5,639.20

Finding the Fourth Proportional to 17,328.72, 25,995.80 and 5,639.20

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Solution

The fourth proportional to 17,328.72, 25,995.80 and 5,639.20 is: 8,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,328.72 : 25,995.80 = 5,639.20 : x
  2. Step 2: Convert to fraction form
    17,328.72/25,995.80 = 5,639.20/x
  3. Step 3: Cross multiply
    17,328.72x = 25,995.80 × 5,639.20
  4. Step 4: Simplify right side
    17,328.72x = 146,595,515.36
  5. Step 5: Solve for x
    x = 146,595,515.36/17,328.72
  6. Step 6: Final answer
    x = 8,459.69

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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.