Home / 15,479.85-21,365.60-10,175.16

Finding the Fourth Proportional to 15,479.85, 21,365.60 and 10,175.16

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Solution

The fourth proportional to 15,479.85, 21,365.60 and 10,175.16 is: 14,043.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.85 : 21,365.60 = 10,175.16 : x
  2. Step 2: Convert to fraction form
    15,479.85/21,365.60 = 10,175.16/x
  3. Step 3: Cross multiply
    15,479.85x = 21,365.60 × 10,175.16
  4. Step 4: Simplify right side
    15,479.85x = 217,398,347.62
  5. Step 5: Solve for x
    x = 217,398,347.62/15,479.85
  6. Step 6: Final answer
    x = 14,043.96

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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.