Home / 19,857.08-29,776.88-9,330.10

Finding the Fourth Proportional to 19,857.08, 29,776.88 and 9,330.10

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Solution

The fourth proportional to 19,857.08, 29,776.88 and 9,330.10 is: 13,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.08 : 29,776.88 = 9,330.10 : x
  2. Step 2: Convert to fraction form
    19,857.08/29,776.88 = 9,330.10/x
  3. Step 3: Cross multiply
    19,857.08x = 29,776.88 × 9,330.10
  4. Step 4: Simplify right side
    19,857.08x = 277,821,072.55
  5. Step 5: Solve for x
    x = 277,821,072.55/19,857.08
  6. Step 6: Final answer
    x = 13,991.03

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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.