Home / 13,967.46-19,252.90-10,978.15

Finding the Fourth Proportional to 13,967.46, 19,252.90 and 10,978.15

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Solution

The fourth proportional to 13,967.46, 19,252.90 and 10,978.15 is: 15,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967.46 : 19,252.90 = 10,978.15 : x
  2. Step 2: Convert to fraction form
    13,967.46/19,252.90 = 10,978.15/x
  3. Step 3: Cross multiply
    13,967.46x = 19,252.90 × 10,978.15
  4. Step 4: Simplify right side
    13,967.46x = 211,361,224.14
  5. Step 5: Solve for x
    x = 211,361,224.14/13,967.46
  6. Step 6: Final answer
    x = 15,132.40

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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.