Home / 14,770.47-20,387.83-9,106.99

Finding the Fourth Proportional to 14,770.47, 20,387.83 and 9,106.99

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Solution

The fourth proportional to 14,770.47, 20,387.83 and 9,106.99 is: 12,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,770.47 : 20,387.83 = 9,106.99 : x
  2. Step 2: Convert to fraction form
    14,770.47/20,387.83 = 9,106.99/x
  3. Step 3: Cross multiply
    14,770.47x = 20,387.83 × 9,106.99
  4. Step 4: Simplify right side
    14,770.47x = 185,671,882.64
  5. Step 5: Solve for x
    x = 185,671,882.64/14,770.47
  6. Step 6: Final answer
    x = 12,570.48

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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.