Home / 15,740.34-21,734.82-10,458.72

Finding the Fourth Proportional to 15,740.34, 21,734.82 and 10,458.72

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Solution

The fourth proportional to 15,740.34, 21,734.82 and 10,458.72 is: 14,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.34 : 21,734.82 = 10,458.72 : x
  2. Step 2: Convert to fraction form
    15,740.34/21,734.82 = 10,458.72/x
  3. Step 3: Cross multiply
    15,740.34x = 21,734.82 × 10,458.72
  4. Step 4: Simplify right side
    15,740.34x = 227,318,396.63
  5. Step 5: Solve for x
    x = 227,318,396.63/15,740.34
  6. Step 6: Final answer
    x = 14,441.77

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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.