Home / 12,356.07-17,051.25-6,690.72

Finding the Fourth Proportional to 12,356.07, 17,051.25 and 6,690.72

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Solution

The fourth proportional to 12,356.07, 17,051.25 and 6,690.72 is: 9,233.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.07 : 17,051.25 = 6,690.72 : x
  2. Step 2: Convert to fraction form
    12,356.07/17,051.25 = 6,690.72/x
  3. Step 3: Cross multiply
    12,356.07x = 17,051.25 × 6,690.72
  4. Step 4: Simplify right side
    12,356.07x = 114,085,139.40
  5. Step 5: Solve for x
    x = 114,085,139.40/12,356.07
  6. Step 6: Final answer
    x = 9,233.13

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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.