Home / 12,546.64-17,326.74-9,889.84

Finding the Fourth Proportional to 12,546.64, 17,326.74 and 9,889.84

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Solution

The fourth proportional to 12,546.64, 17,326.74 and 9,889.84 is: 13,657.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.64 : 17,326.74 = 9,889.84 : x
  2. Step 2: Convert to fraction form
    12,546.64/17,326.74 = 9,889.84/x
  3. Step 3: Cross multiply
    12,546.64x = 17,326.74 × 9,889.84
  4. Step 4: Simplify right side
    12,546.64x = 171,358,686.32
  5. Step 5: Solve for x
    x = 171,358,686.32/12,546.64
  6. Step 6: Final answer
    x = 13,657.74

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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.