Home / 15,927.24-21,970-10,260.12

Finding the Fourth Proportional to 15,927.24, 21,970 and 10,260.12

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Solution

The fourth proportional to 15,927.24, 21,970 and 10,260.12 is: 14,152.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,927.24 : 21,970 = 10,260.12 : x
  2. Step 2: Convert to fraction form
    15,927.24/21,970 = 10,260.12/x
  3. Step 3: Cross multiply
    15,927.24x = 21,970 × 10,260.12
  4. Step 4: Simplify right side
    15,927.24x = 225,414,836.40
  5. Step 5: Solve for x
    x = 225,414,836.40/15,927.24
  6. Step 6: Final answer
    x = 14,152.79

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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.