Home / 15,703.14-21,648.67-12,527.21

Finding the Fourth Proportional to 15,703.14, 21,648.67 and 12,527.21

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Solution

The fourth proportional to 15,703.14, 21,648.67 and 12,527.21 is: 17,270.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.14 : 21,648.67 = 12,527.21 : x
  2. Step 2: Convert to fraction form
    15,703.14/21,648.67 = 12,527.21/x
  3. Step 3: Cross multiply
    15,703.14x = 21,648.67 × 12,527.21
  4. Step 4: Simplify right side
    15,703.14x = 271,197,435.31
  5. Step 5: Solve for x
    x = 271,197,435.31/15,703.14
  6. Step 6: Final answer
    x = 17,270.27

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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.