Home / 7,555.40-11,332.12-2,009.20

Finding the Fourth Proportional to 7,555.40, 11,332.12 and 2,009.20

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Solution

The fourth proportional to 7,555.40, 11,332.12 and 2,009.20 is: 3,013.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.40 : 11,332.12 = 2,009.20 : x
  2. Step 2: Convert to fraction form
    7,555.40/11,332.12 = 2,009.20/x
  3. Step 3: Cross multiply
    7,555.40x = 11,332.12 × 2,009.20
  4. Step 4: Simplify right side
    7,555.40x = 22,768,428.80
  5. Step 5: Solve for x
    x = 22,768,428.80/7,555.40
  6. Step 6: Final answer
    x = 3,013.53

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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.