Home / 13,863.10-19,131.51-7,575.34

Finding the Fourth Proportional to 13,863.10, 19,131.51 and 7,575.34

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Solution

The fourth proportional to 13,863.10, 19,131.51 and 7,575.34 is: 10,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.10 : 19,131.51 = 7,575.34 : x
  2. Step 2: Convert to fraction form
    13,863.10/19,131.51 = 7,575.34/x
  3. Step 3: Cross multiply
    13,863.10x = 19,131.51 × 7,575.34
  4. Step 4: Simplify right side
    13,863.10x = 144,927,692.96
  5. Step 5: Solve for x
    x = 144,927,692.96/13,863.10
  6. Step 6: Final answer
    x = 10,454.21

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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.