Home / 14,272.16-19,695.84-7,984.40

Finding the Fourth Proportional to 14,272.16, 19,695.84 and 7,984.40

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Solution

The fourth proportional to 14,272.16, 19,695.84 and 7,984.40 is: 11,018.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.16 : 19,695.84 = 7,984.40 : x
  2. Step 2: Convert to fraction form
    14,272.16/19,695.84 = 7,984.40/x
  3. Step 3: Cross multiply
    14,272.16x = 19,695.84 × 7,984.40
  4. Step 4: Simplify right side
    14,272.16x = 157,259,464.90
  5. Step 5: Solve for x
    x = 157,259,464.90/14,272.16
  6. Step 6: Final answer
    x = 11,018.62

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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.