Home / 9,120.21-13,680.45-6,020.07

Finding the Fourth Proportional to 9,120.21, 13,680.45 and 6,020.07

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Solution

The fourth proportional to 9,120.21, 13,680.45 and 6,020.07 is: 9,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.21 : 13,680.45 = 6,020.07 : x
  2. Step 2: Convert to fraction form
    9,120.21/13,680.45 = 6,020.07/x
  3. Step 3: Cross multiply
    9,120.21x = 13,680.45 × 6,020.07
  4. Step 4: Simplify right side
    9,120.21x = 82,357,266.63
  5. Step 5: Solve for x
    x = 82,357,266.63/9,120.21
  6. Step 6: Final answer
    x = 9,030.19

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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.