Home / 13,539.04-20,303.98-5,218.38

Finding the Fourth Proportional to 13,539.04, 20,303.98 and 5,218.38

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Solution

The fourth proportional to 13,539.04, 20,303.98 and 5,218.38 is: 7,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.04 : 20,303.98 = 5,218.38 : x
  2. Step 2: Convert to fraction form
    13,539.04/20,303.98 = 5,218.38/x
  3. Step 3: Cross multiply
    13,539.04x = 20,303.98 × 5,218.38
  4. Step 4: Simplify right side
    13,539.04x = 105,953,883.15
  5. Step 5: Solve for x
    x = 105,953,883.15/13,539.04
  6. Step 6: Final answer
    x = 7,825.80

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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.