Home / 14,091.22-21,130.44-5,319.91

Finding the Fourth Proportional to 14,091.22, 21,130.44 and 5,319.91

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Solution

The fourth proportional to 14,091.22, 21,130.44 and 5,319.91 is: 7,977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.22 : 21,130.44 = 5,319.91 : x
  2. Step 2: Convert to fraction form
    14,091.22/21,130.44 = 5,319.91/x
  3. Step 3: Cross multiply
    14,091.22x = 21,130.44 × 5,319.91
  4. Step 4: Simplify right side
    14,091.22x = 112,412,039.06
  5. Step 5: Solve for x
    x = 112,412,039.06/14,091.22
  6. Step 6: Final answer
    x = 7,977.45

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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.