Home / 14,145.50-21,181.10-9,962.87

Finding the Fourth Proportional to 14,145.50, 21,181.10 and 9,962.87

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Solution

The fourth proportional to 14,145.50, 21,181.10 and 9,962.87 is: 14,918.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.50 : 21,181.10 = 9,962.87 : x
  2. Step 2: Convert to fraction form
    14,145.50/21,181.10 = 9,962.87/x
  3. Step 3: Cross multiply
    14,145.50x = 21,181.10 × 9,962.87
  4. Step 4: Simplify right side
    14,145.50x = 211,024,390.04
  5. Step 5: Solve for x
    x = 211,024,390.04/14,145.50
  6. Step 6: Final answer
    x = 14,918.13

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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.