Home / 15,310.01-21,122.38-10,007.88

Finding the Fourth Proportional to 15,310.01, 21,122.38 and 10,007.88

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Solution

The fourth proportional to 15,310.01, 21,122.38 and 10,007.88 is: 13,807.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.01 : 21,122.38 = 10,007.88 : x
  2. Step 2: Convert to fraction form
    15,310.01/21,122.38 = 10,007.88/x
  3. Step 3: Cross multiply
    15,310.01x = 21,122.38 × 10,007.88
  4. Step 4: Simplify right side
    15,310.01x = 211,390,244.35
  5. Step 5: Solve for x
    x = 211,390,244.35/15,310.01
  6. Step 6: Final answer
    x = 13,807.32

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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.