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Finding the Fourth Proportional to 12,574.70, 17,353 and 6,909.51

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Solution

The fourth proportional to 12,574.70, 17,353 and 6,909.51 is: 9,535.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.70 : 17,353 = 6,909.51 : x
  2. Step 2: Convert to fraction form
    12,574.70/17,353 = 6,909.51/x
  3. Step 3: Cross multiply
    12,574.70x = 17,353 × 6,909.51
  4. Step 4: Simplify right side
    12,574.70x = 119,900,727.03
  5. Step 5: Solve for x
    x = 119,900,727.03/12,574.70
  6. Step 6: Final answer
    x = 9,535.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.