Home / 15,708.12-21,672.54-14,211.24

Finding the Fourth Proportional to 15,708.12, 21,672.54 and 14,211.24

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Solution

The fourth proportional to 15,708.12, 21,672.54 and 14,211.24 is: 19,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.12 : 21,672.54 = 14,211.24 : x
  2. Step 2: Convert to fraction form
    15,708.12/21,672.54 = 14,211.24/x
  3. Step 3: Cross multiply
    15,708.12x = 21,672.54 × 14,211.24
  4. Step 4: Simplify right side
    15,708.12x = 307,993,667.35
  5. Step 5: Solve for x
    x = 307,993,667.35/15,708.12
  6. Step 6: Final answer
    x = 19,607.29

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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.