Home / 13,921.34-19,211.31-7,952.58

Finding the Fourth Proportional to 13,921.34, 19,211.31 and 7,952.58

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Solution

The fourth proportional to 13,921.34, 19,211.31 and 7,952.58 is: 10,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.34 : 19,211.31 = 7,952.58 : x
  2. Step 2: Convert to fraction form
    13,921.34/19,211.31 = 7,952.58/x
  3. Step 3: Cross multiply
    13,921.34x = 19,211.31 × 7,952.58
  4. Step 4: Simplify right side
    13,921.34x = 152,779,479.68
  5. Step 5: Solve for x
    x = 152,779,479.68/13,921.34
  6. Step 6: Final answer
    x = 10,974.48

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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.