Home / 14,108.60-21,154.32-9,721.22

Finding the Fourth Proportional to 14,108.60, 21,154.32 and 9,721.22

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Solution

The fourth proportional to 14,108.60, 21,154.32 and 9,721.22 is: 14,575.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.60 : 21,154.32 = 9,721.22 : x
  2. Step 2: Convert to fraction form
    14,108.60/21,154.32 = 9,721.22/x
  3. Step 3: Cross multiply
    14,108.60x = 21,154.32 × 9,721.22
  4. Step 4: Simplify right side
    14,108.60x = 205,645,798.67
  5. Step 5: Solve for x
    x = 205,645,798.67/14,108.60
  6. Step 6: Final answer
    x = 14,575.92

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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.