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Finding the Fourth Proportional to 17,775.60, 26,641.80 and 7,904.40

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Solution

The fourth proportional to 17,775.60, 26,641.80 and 7,904.40 is: 11,846.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.60 : 26,641.80 = 7,904.40 : x
  2. Step 2: Convert to fraction form
    17,775.60/26,641.80 = 7,904.40/x
  3. Step 3: Cross multiply
    17,775.60x = 26,641.80 × 7,904.40
  4. Step 4: Simplify right side
    17,775.60x = 210,587,443.92
  5. Step 5: Solve for x
    x = 210,587,443.92/17,775.60
  6. Step 6: Final answer
    x = 11,846.99

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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.