Home / 14,025.16-21,009.12-8,742.88

Finding the Fourth Proportional to 14,025.16, 21,009.12 and 8,742.88

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Solution

The fourth proportional to 14,025.16, 21,009.12 and 8,742.88 is: 13,096.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,025.16 : 21,009.12 = 8,742.88 : x
  2. Step 2: Convert to fraction form
    14,025.16/21,009.12 = 8,742.88/x
  3. Step 3: Cross multiply
    14,025.16x = 21,009.12 × 8,742.88
  4. Step 4: Simplify right side
    14,025.16x = 183,680,215.07
  5. Step 5: Solve for x
    x = 183,680,215.07/14,025.16
  6. Step 6: Final answer
    x = 13,096.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.