Home / 13,199.04-18,214.88-7,230.69

Finding the Fourth Proportional to 13,199.04, 18,214.88 and 7,230.69

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Solution

The fourth proportional to 13,199.04, 18,214.88 and 7,230.69 is: 9,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.04 : 18,214.88 = 7,230.69 : x
  2. Step 2: Convert to fraction form
    13,199.04/18,214.88 = 7,230.69/x
  3. Step 3: Cross multiply
    13,199.04x = 18,214.88 × 7,230.69
  4. Step 4: Simplify right side
    13,199.04x = 131,706,114.51
  5. Step 5: Solve for x
    x = 131,706,114.51/13,199.04
  6. Step 6: Final answer
    x = 9,978.46

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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.