Home / 13,948.32-19,235.16-9,420.96

Finding the Fourth Proportional to 13,948.32, 19,235.16 and 9,420.96

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Solution

The fourth proportional to 13,948.32, 19,235.16 and 9,420.96 is: 12,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.32 : 19,235.16 = 9,420.96 : x
  2. Step 2: Convert to fraction form
    13,948.32/19,235.16 = 9,420.96/x
  3. Step 3: Cross multiply
    13,948.32x = 19,235.16 × 9,420.96
  4. Step 4: Simplify right side
    13,948.32x = 181,213,672.95
  5. Step 5: Solve for x
    x = 181,213,672.95/13,948.32
  6. Step 6: Final answer
    x = 12,991.79

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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.