Home / 15,618.48-23,384.40-12,162.48

Finding the Fourth Proportional to 15,618.48, 23,384.40 and 12,162.48

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Solution

The fourth proportional to 15,618.48, 23,384.40 and 12,162.48 is: 18,209.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.48 : 23,384.40 = 12,162.48 : x
  2. Step 2: Convert to fraction form
    15,618.48/23,384.40 = 12,162.48/x
  3. Step 3: Cross multiply
    15,618.48x = 23,384.40 × 12,162.48
  4. Step 4: Simplify right side
    15,618.48x = 284,412,297.31
  5. Step 5: Solve for x
    x = 284,412,297.31/15,618.48
  6. Step 6: Final answer
    x = 18,209.99

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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.