Home / 14,157.90-21,319.15-10,486.14

Finding the Fourth Proportional to 14,157.90, 21,319.15 and 10,486.14

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Solution

The fourth proportional to 14,157.90, 21,319.15 and 10,486.14 is: 15,790.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.90 : 21,319.15 = 10,486.14 : x
  2. Step 2: Convert to fraction form
    14,157.90/21,319.15 = 10,486.14/x
  3. Step 3: Cross multiply
    14,157.90x = 21,319.15 × 10,486.14
  4. Step 4: Simplify right side
    14,157.90x = 223,555,591.58
  5. Step 5: Solve for x
    x = 223,555,591.58/14,157.90
  6. Step 6: Final answer
    x = 15,790.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.