Home / 14,721.64-20,314.80-8,348.36

Finding the Fourth Proportional to 14,721.64, 20,314.80 and 8,348.36

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Solution

The fourth proportional to 14,721.64, 20,314.80 and 8,348.36 is: 11,520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.64 : 20,314.80 = 8,348.36 : x
  2. Step 2: Convert to fraction form
    14,721.64/20,314.80 = 8,348.36/x
  3. Step 3: Cross multiply
    14,721.64x = 20,314.80 × 8,348.36
  4. Step 4: Simplify right side
    14,721.64x = 169,595,162.15
  5. Step 5: Solve for x
    x = 169,595,162.15/14,721.64
  6. Step 6: Final answer
    x = 11,520.13

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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.