Home / 13,934.16-20,889.63-12,715.47

Finding the Fourth Proportional to 13,934.16, 20,889.63 and 12,715.47

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Solution

The fourth proportional to 13,934.16, 20,889.63 and 12,715.47 is: 19,062.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.16 : 20,889.63 = 12,715.47 : x
  2. Step 2: Convert to fraction form
    13,934.16/20,889.63 = 12,715.47/x
  3. Step 3: Cross multiply
    13,934.16x = 20,889.63 × 12,715.47
  4. Step 4: Simplify right side
    13,934.16x = 265,621,463.58
  5. Step 5: Solve for x
    x = 265,621,463.58/13,934.16
  6. Step 6: Final answer
    x = 19,062.61

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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.