Home / 12,257.30-18,397.47-6,418.10

Finding the Fourth Proportional to 12,257.30, 18,397.47 and 6,418.10

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Solution

The fourth proportional to 12,257.30, 18,397.47 and 6,418.10 is: 9,633.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.30 : 18,397.47 = 6,418.10 : x
  2. Step 2: Convert to fraction form
    12,257.30/18,397.47 = 6,418.10/x
  3. Step 3: Cross multiply
    12,257.30x = 18,397.47 × 6,418.10
  4. Step 4: Simplify right side
    12,257.30x = 118,076,802.21
  5. Step 5: Solve for x
    x = 118,076,802.21/12,257.30
  6. Step 6: Final answer
    x = 9,633.18

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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.