Home / 15,709.52-21,671.88-10,122.32

Finding the Fourth Proportional to 15,709.52, 21,671.88 and 10,122.32

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Solution

The fourth proportional to 15,709.52, 21,671.88 and 10,122.32 is: 13,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,709.52 : 21,671.88 = 10,122.32 : x
  2. Step 2: Convert to fraction form
    15,709.52/21,671.88 = 10,122.32/x
  3. Step 3: Cross multiply
    15,709.52x = 21,671.88 × 10,122.32
  4. Step 4: Simplify right side
    15,709.52x = 219,369,704.36
  5. Step 5: Solve for x
    x = 219,369,704.36/15,709.52
  6. Step 6: Final answer
    x = 13,964.13

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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.