Home / 13,994.29-19,312.19-7,620.90

Finding the Fourth Proportional to 13,994.29, 19,312.19 and 7,620.90

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Solution

The fourth proportional to 13,994.29, 19,312.19 and 7,620.90 is: 10,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.29 : 19,312.19 = 7,620.90 : x
  2. Step 2: Convert to fraction form
    13,994.29/19,312.19 = 7,620.90/x
  3. Step 3: Cross multiply
    13,994.29x = 19,312.19 × 7,620.90
  4. Step 4: Simplify right side
    13,994.29x = 147,176,268.77
  5. Step 5: Solve for x
    x = 147,176,268.77/13,994.29
  6. Step 6: Final answer
    x = 10,516.88

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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.