Home / 15,461.74-21,336.96-8,388.10

Finding the Fourth Proportional to 15,461.74, 21,336.96 and 8,388.10

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Solution

The fourth proportional to 15,461.74, 21,336.96 and 8,388.10 is: 11,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.74 : 21,336.96 = 8,388.10 : x
  2. Step 2: Convert to fraction form
    15,461.74/21,336.96 = 8,388.10/x
  3. Step 3: Cross multiply
    15,461.74x = 21,336.96 × 8,388.10
  4. Step 4: Simplify right side
    15,461.74x = 178,976,554.18
  5. Step 5: Solve for x
    x = 178,976,554.18/15,461.74
  6. Step 6: Final answer
    x = 11,575.45

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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.