Home / 14,567.09-20,104.12-8,905.15

Finding the Fourth Proportional to 14,567.09, 20,104.12 and 8,905.15

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Solution

The fourth proportional to 14,567.09, 20,104.12 and 8,905.15 is: 12,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,567.09 : 20,104.12 = 8,905.15 : x
  2. Step 2: Convert to fraction form
    14,567.09/20,104.12 = 8,905.15/x
  3. Step 3: Cross multiply
    14,567.09x = 20,104.12 × 8,905.15
  4. Step 4: Simplify right side
    14,567.09x = 179,030,204.22
  5. Step 5: Solve for x
    x = 179,030,204.22/14,567.09
  6. Step 6: Final answer
    x = 12,290.05

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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.