Home / 13,207.16-19,673.15-12,505.95

Finding the Fourth Proportional to 13,207.16, 19,673.15 and 12,505.95

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Solution

The fourth proportional to 13,207.16, 19,673.15 and 12,505.95 is: 18,628.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.16 : 19,673.15 = 12,505.95 : x
  2. Step 2: Convert to fraction form
    13,207.16/19,673.15 = 12,505.95/x
  3. Step 3: Cross multiply
    13,207.16x = 19,673.15 × 12,505.95
  4. Step 4: Simplify right side
    13,207.16x = 246,031,367.71
  5. Step 5: Solve for x
    x = 246,031,367.71/13,207.16
  6. Step 6: Final answer
    x = 18,628.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.