Home / 17,478.72-26,220.24-6,390.63

Finding the Fourth Proportional to 17,478.72, 26,220.24 and 6,390.63

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Solution

The fourth proportional to 17,478.72, 26,220.24 and 6,390.63 is: 9,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,478.72 : 26,220.24 = 6,390.63 : x
  2. Step 2: Convert to fraction form
    17,478.72/26,220.24 = 6,390.63/x
  3. Step 3: Cross multiply
    17,478.72x = 26,220.24 × 6,390.63
  4. Step 4: Simplify right side
    17,478.72x = 167,563,852.35
  5. Step 5: Solve for x
    x = 167,563,852.35/17,478.72
  6. Step 6: Final answer
    x = 9,586.73

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Double scale
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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.