Home / 14,108.22-21,153.48-9,720.72

Finding the Fourth Proportional to 14,108.22, 21,153.48 and 9,720.72

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Solution

The fourth proportional to 14,108.22, 21,153.48 and 9,720.72 is: 14,574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.22 : 21,153.48 = 9,720.72 : x
  2. Step 2: Convert to fraction form
    14,108.22/21,153.48 = 9,720.72/x
  3. Step 3: Cross multiply
    14,108.22x = 21,153.48 × 9,720.72
  4. Step 4: Simplify right side
    14,108.22x = 205,627,056.11
  5. Step 5: Solve for x
    x = 205,627,056.11/14,108.22
  6. Step 6: Final answer
    x = 14,574.98

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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.