Home / 15,424.82-21,282.59-9,374.96

Finding the Fourth Proportional to 15,424.82, 21,282.59 and 9,374.96

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Solution

The fourth proportional to 15,424.82, 21,282.59 and 9,374.96 is: 12,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.82 : 21,282.59 = 9,374.96 : x
  2. Step 2: Convert to fraction form
    15,424.82/21,282.59 = 9,374.96/x
  3. Step 3: Cross multiply
    15,424.82x = 21,282.59 × 9,374.96
  4. Step 4: Simplify right side
    15,424.82x = 199,523,386.88
  5. Step 5: Solve for x
    x = 199,523,386.88/15,424.82
  6. Step 6: Final answer
    x = 12,935.22

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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.