Home / 13,321.13-19,987.36-4,999.93

Finding the Fourth Proportional to 13,321.13, 19,987.36 and 4,999.93

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Solution

The fourth proportional to 13,321.13, 19,987.36 and 4,999.93 is: 7,502.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.13 : 19,987.36 = 4,999.93 : x
  2. Step 2: Convert to fraction form
    13,321.13/19,987.36 = 4,999.93/x
  3. Step 3: Cross multiply
    13,321.13x = 19,987.36 × 4,999.93
  4. Step 4: Simplify right side
    13,321.13x = 99,935,338.42
  5. Step 5: Solve for x
    x = 99,935,338.42/13,321.13
  6. Step 6: Final answer
    x = 7,502.02

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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.