Home / 17,621.81-24,318.34-9,663.51

Finding the Fourth Proportional to 17,621.81, 24,318.34 and 9,663.51

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Solution

The fourth proportional to 17,621.81, 24,318.34 and 9,663.51 is: 13,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,621.81 : 24,318.34 = 9,663.51 : x
  2. Step 2: Convert to fraction form
    17,621.81/24,318.34 = 9,663.51/x
  3. Step 3: Cross multiply
    17,621.81x = 24,318.34 × 9,663.51
  4. Step 4: Simplify right side
    17,621.81x = 235,000,521.77
  5. Step 5: Solve for x
    x = 235,000,521.77/17,621.81
  6. Step 6: Final answer
    x = 13,335.78

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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.