Home / 12,501.80-18,752.70-9,229.40

Finding the Fourth Proportional to 12,501.80, 18,752.70 and 9,229.40

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Solution

The fourth proportional to 12,501.80, 18,752.70 and 9,229.40 is: 13,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.80 : 18,752.70 = 9,229.40 : x
  2. Step 2: Convert to fraction form
    12,501.80/18,752.70 = 9,229.40/x
  3. Step 3: Cross multiply
    12,501.80x = 18,752.70 × 9,229.40
  4. Step 4: Simplify right side
    12,501.80x = 173,076,169.38
  5. Step 5: Solve for x
    x = 173,076,169.38/12,501.80
  6. Step 6: Final answer
    x = 13,844.10

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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.