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Finding the Fourth Proportional to 17,313.80, 25,970.70 and 8,565.80

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Solution

The fourth proportional to 17,313.80, 25,970.70 and 8,565.80 is: 12,848.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,313.80 : 25,970.70 = 8,565.80 : x
  2. Step 2: Convert to fraction form
    17,313.80/25,970.70 = 8,565.80/x
  3. Step 3: Cross multiply
    17,313.80x = 25,970.70 × 8,565.80
  4. Step 4: Simplify right side
    17,313.80x = 222,459,822.06
  5. Step 5: Solve for x
    x = 222,459,822.06/17,313.80
  6. Step 6: Final answer
    x = 12,848.70

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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.