Home / 7,218.09-9,959.63-4,073.67

Finding the Fourth Proportional to 7,218.09, 9,959.63 and 4,073.67

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Solution

The fourth proportional to 7,218.09, 9,959.63 and 4,073.67 is: 5,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.09 : 9,959.63 = 4,073.67 : x
  2. Step 2: Convert to fraction form
    7,218.09/9,959.63 = 4,073.67/x
  3. Step 3: Cross multiply
    7,218.09x = 9,959.63 × 4,073.67
  4. Step 4: Simplify right side
    7,218.09x = 40,572,225.57
  5. Step 5: Solve for x
    x = 40,572,225.57/7,218.09
  6. Step 6: Final answer
    x = 5,620.91

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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.