Home / 13,146.58-19,725.63-6,905.15

Finding the Fourth Proportional to 13,146.58, 19,725.63 and 6,905.15

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Solution

The fourth proportional to 13,146.58, 19,725.63 and 6,905.15 is: 10,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.58 : 19,725.63 = 6,905.15 : x
  2. Step 2: Convert to fraction form
    13,146.58/19,725.63 = 6,905.15/x
  3. Step 3: Cross multiply
    13,146.58x = 19,725.63 × 6,905.15
  4. Step 4: Simplify right side
    13,146.58x = 136,208,335.37
  5. Step 5: Solve for x
    x = 136,208,335.37/13,146.58
  6. Step 6: Final answer
    x = 10,360.74

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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.