Home / 8,990.19-13,461.70-6,343.41

Finding the Fourth Proportional to 8,990.19, 13,461.70 and 6,343.41

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Solution

The fourth proportional to 8,990.19, 13,461.70 and 6,343.41 is: 9,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.19 : 13,461.70 = 6,343.41 : x
  2. Step 2: Convert to fraction form
    8,990.19/13,461.70 = 6,343.41/x
  3. Step 3: Cross multiply
    8,990.19x = 13,461.70 × 6,343.41
  4. Step 4: Simplify right side
    8,990.19x = 85,393,015.09
  5. Step 5: Solve for x
    x = 85,393,015.09/8,990.19
  6. Step 6: Final answer
    x = 9,498.47

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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.