Home / 12,312.42-18,442.44-6,451.26

Finding the Fourth Proportional to 12,312.42, 18,442.44 and 6,451.26

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Solution

The fourth proportional to 12,312.42, 18,442.44 and 6,451.26 is: 9,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.42 : 18,442.44 = 6,451.26 : x
  2. Step 2: Convert to fraction form
    12,312.42/18,442.44 = 6,451.26/x
  3. Step 3: Cross multiply
    12,312.42x = 18,442.44 × 6,451.26
  4. Step 4: Simplify right side
    12,312.42x = 118,976,975.47
  5. Step 5: Solve for x
    x = 118,976,975.47/12,312.42
  6. Step 6: Final answer
    x = 9,663.17

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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.