Home / 13,060.71-19,687.46-12,298.64

Finding the Fourth Proportional to 13,060.71, 19,687.46 and 12,298.64

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Solution

The fourth proportional to 13,060.71, 19,687.46 and 12,298.64 is: 18,538.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.71 : 19,687.46 = 12,298.64 : x
  2. Step 2: Convert to fraction form
    13,060.71/19,687.46 = 12,298.64/x
  3. Step 3: Cross multiply
    13,060.71x = 19,687.46 × 12,298.64
  4. Step 4: Simplify right side
    13,060.71x = 242,128,823.12
  5. Step 5: Solve for x
    x = 242,128,823.12/13,060.71
  6. Step 6: Final answer
    x = 18,538.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.