Home / 14,054.34-21,175.18-12,721.74

Finding the Fourth Proportional to 14,054.34, 21,175.18 and 12,721.74

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Solution

The fourth proportional to 14,054.34, 21,175.18 and 12,721.74 is: 19,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,054.34 : 21,175.18 = 12,721.74 : x
  2. Step 2: Convert to fraction form
    14,054.34/21,175.18 = 12,721.74/x
  3. Step 3: Cross multiply
    14,054.34x = 21,175.18 × 12,721.74
  4. Step 4: Simplify right side
    14,054.34x = 269,385,134.41
  5. Step 5: Solve for x
    x = 269,385,134.41/14,054.34
  6. Step 6: Final answer
    x = 19,167.40

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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.