Home / 15,725.61-21,710.30-10,427.59

Finding the Fourth Proportional to 15,725.61, 21,710.30 and 10,427.59

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Solution

The fourth proportional to 15,725.61, 21,710.30 and 10,427.59 is: 14,396.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,725.61 : 21,710.30 = 10,427.59 : x
  2. Step 2: Convert to fraction form
    15,725.61/21,710.30 = 10,427.59/x
  3. Step 3: Cross multiply
    15,725.61x = 21,710.30 × 10,427.59
  4. Step 4: Simplify right side
    15,725.61x = 226,386,107.18
  5. Step 5: Solve for x
    x = 226,386,107.18/15,725.61
  6. Step 6: Final answer
    x = 14,396.01

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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.