Home / 15,716.16-21,697.74-10,347.21

Finding the Fourth Proportional to 15,716.16, 21,697.74 and 10,347.21

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Solution

The fourth proportional to 15,716.16, 21,697.74 and 10,347.21 is: 14,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,716.16 : 21,697.74 = 10,347.21 : x
  2. Step 2: Convert to fraction form
    15,716.16/21,697.74 = 10,347.21/x
  3. Step 3: Cross multiply
    15,716.16x = 21,697.74 × 10,347.21
  4. Step 4: Simplify right side
    15,716.16x = 224,511,072.31
  5. Step 5: Solve for x
    x = 224,511,072.31/15,716.16
  6. Step 6: Final answer
    x = 14,285.36

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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.