Home / 14,009.08-21,020.30-8,742.66

Finding the Fourth Proportional to 14,009.08, 21,020.30 and 8,742.66

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Solution

The fourth proportional to 14,009.08, 21,020.30 and 8,742.66 is: 13,118.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.08 : 21,020.30 = 8,742.66 : x
  2. Step 2: Convert to fraction form
    14,009.08/21,020.30 = 8,742.66/x
  3. Step 3: Cross multiply
    14,009.08x = 21,020.30 × 8,742.66
  4. Step 4: Simplify right side
    14,009.08x = 183,773,336.00
  5. Step 5: Solve for x
    x = 183,773,336.00/14,009.08
  6. Step 6: Final answer
    x = 13,118.16

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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.