Home / 7,043.55-9,721.18-4,018.68

Finding the Fourth Proportional to 7,043.55, 9,721.18 and 4,018.68

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Solution

The fourth proportional to 7,043.55, 9,721.18 and 4,018.68 is: 5,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043.55 : 9,721.18 = 4,018.68 : x
  2. Step 2: Convert to fraction form
    7,043.55/9,721.18 = 4,018.68/x
  3. Step 3: Cross multiply
    7,043.55x = 9,721.18 × 4,018.68
  4. Step 4: Simplify right side
    7,043.55x = 39,066,316.67
  5. Step 5: Solve for x
    x = 39,066,316.67/7,043.55
  6. Step 6: Final answer
    x = 5,546.40

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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.