Home / 14,770.13-20,383.16-9,108.63

Finding the Fourth Proportional to 14,770.13, 20,383.16 and 9,108.63

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Solution

The fourth proportional to 14,770.13, 20,383.16 and 9,108.63 is: 12,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,770.13 : 20,383.16 = 9,108.63 : x
  2. Step 2: Convert to fraction form
    14,770.13/20,383.16 = 9,108.63/x
  3. Step 3: Cross multiply
    14,770.13x = 20,383.16 × 9,108.63
  4. Step 4: Simplify right side
    14,770.13x = 185,662,617.13
  5. Step 5: Solve for x
    x = 185,662,617.13/14,770.13
  6. Step 6: Final answer
    x = 12,570.15

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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.