Home / 9,971.08-13,758.99-5,721.01

Finding the Fourth Proportional to 9,971.08, 13,758.99 and 5,721.01

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Solution

The fourth proportional to 9,971.08, 13,758.99 and 5,721.01 is: 7,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,971.08 : 13,758.99 = 5,721.01 : x
  2. Step 2: Convert to fraction form
    9,971.08/13,758.99 = 5,721.01/x
  3. Step 3: Cross multiply
    9,971.08x = 13,758.99 × 5,721.01
  4. Step 4: Simplify right side
    9,971.08x = 78,715,319.38
  5. Step 5: Solve for x
    x = 78,715,319.38/9,971.08
  6. Step 6: Final answer
    x = 7,894.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.