Home / 12,643.07-17,446.12-7,336.86

Finding the Fourth Proportional to 12,643.07, 17,446.12 and 7,336.86

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Solution

The fourth proportional to 12,643.07, 17,446.12 and 7,336.86 is: 10,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.07 : 17,446.12 = 7,336.86 : x
  2. Step 2: Convert to fraction form
    12,643.07/17,446.12 = 7,336.86/x
  3. Step 3: Cross multiply
    12,643.07x = 17,446.12 × 7,336.86
  4. Step 4: Simplify right side
    12,643.07x = 127,999,656.22
  5. Step 5: Solve for x
    x = 127,999,656.22/12,643.07
  6. Step 6: Final answer
    x = 10,124.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.