Home / 7,486.12-10,330.41-4,128.94

Finding the Fourth Proportional to 7,486.12, 10,330.41 and 4,128.94

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Solution

The fourth proportional to 7,486.12, 10,330.41 and 4,128.94 is: 5,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.12 : 10,330.41 = 4,128.94 : x
  2. Step 2: Convert to fraction form
    7,486.12/10,330.41 = 4,128.94/x
  3. Step 3: Cross multiply
    7,486.12x = 10,330.41 × 4,128.94
  4. Step 4: Simplify right side
    7,486.12x = 42,653,643.07
  5. Step 5: Solve for x
    x = 42,653,643.07/7,486.12
  6. Step 6: Final answer
    x = 5,697.70

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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.