Home / 13,384.98-18,473.23-7,718.62

Finding the Fourth Proportional to 13,384.98, 18,473.23 and 7,718.62

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Solution

The fourth proportional to 13,384.98, 18,473.23 and 7,718.62 is: 10,652.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.98 : 18,473.23 = 7,718.62 : x
  2. Step 2: Convert to fraction form
    13,384.98/18,473.23 = 7,718.62/x
  3. Step 3: Cross multiply
    13,384.98x = 18,473.23 × 7,718.62
  4. Step 4: Simplify right side
    13,384.98x = 142,587,842.54
  5. Step 5: Solve for x
    x = 142,587,842.54/13,384.98
  6. Step 6: Final answer
    x = 10,652.82

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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.