Home / 9,905.40-14,853.30-5,518.20

Finding the Fourth Proportional to 9,905.40, 14,853.30 and 5,518.20

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Solution

The fourth proportional to 9,905.40, 14,853.30 and 5,518.20 is: 8,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.40 : 14,853.30 = 5,518.20 : x
  2. Step 2: Convert to fraction form
    9,905.40/14,853.30 = 5,518.20/x
  3. Step 3: Cross multiply
    9,905.40x = 14,853.30 × 5,518.20
  4. Step 4: Simplify right side
    9,905.40x = 81,963,480.06
  5. Step 5: Solve for x
    x = 81,963,480.06/9,905.40
  6. Step 6: Final answer
    x = 8,274.63

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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.