Home / 15,719.46-21,703.96-10,425.30

Finding the Fourth Proportional to 15,719.46, 21,703.96 and 10,425.30

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Solution

The fourth proportional to 15,719.46, 21,703.96 and 10,425.30 is: 14,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.46 : 21,703.96 = 10,425.30 : x
  2. Step 2: Convert to fraction form
    15,719.46/21,703.96 = 10,425.30/x
  3. Step 3: Cross multiply
    15,719.46x = 21,703.96 × 10,425.30
  4. Step 4: Simplify right side
    15,719.46x = 226,270,294.19
  5. Step 5: Solve for x
    x = 226,270,294.19/15,719.46
  6. Step 6: Final answer
    x = 14,394.28

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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.