Home / 12,426.78-17,148.95-6,837.74

Finding the Fourth Proportional to 12,426.78, 17,148.95 and 6,837.74

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Solution

The fourth proportional to 12,426.78, 17,148.95 and 6,837.74 is: 9,436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.78 : 17,148.95 = 6,837.74 : x
  2. Step 2: Convert to fraction form
    12,426.78/17,148.95 = 6,837.74/x
  3. Step 3: Cross multiply
    12,426.78x = 17,148.95 × 6,837.74
  4. Step 4: Simplify right side
    12,426.78x = 117,260,061.37
  5. Step 5: Solve for x
    x = 117,260,061.37/12,426.78
  6. Step 6: Final answer
    x = 9,436.08

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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.