Home / 15,030.25-20,740.11-8,314.81

Finding the Fourth Proportional to 15,030.25, 20,740.11 and 8,314.81

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Solution

The fourth proportional to 15,030.25, 20,740.11 and 8,314.81 is: 11,473.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.25 : 20,740.11 = 8,314.81 : x
  2. Step 2: Convert to fraction form
    15,030.25/20,740.11 = 8,314.81/x
  3. Step 3: Cross multiply
    15,030.25x = 20,740.11 × 8,314.81
  4. Step 4: Simplify right side
    15,030.25x = 172,450,074.03
  5. Step 5: Solve for x
    x = 172,450,074.03/15,030.25
  6. Step 6: Final answer
    x = 11,473.53

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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.