Home / 18,290.64-27,437.57-5,143.12

Finding the Fourth Proportional to 18,290.64, 27,437.57 and 5,143.12

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Solution

The fourth proportional to 18,290.64, 27,437.57 and 5,143.12 is: 7,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.64 : 27,437.57 = 5,143.12 : x
  2. Step 2: Convert to fraction form
    18,290.64/27,437.57 = 5,143.12/x
  3. Step 3: Cross multiply
    18,290.64x = 27,437.57 × 5,143.12
  4. Step 4: Simplify right side
    18,290.64x = 141,114,715.02
  5. Step 5: Solve for x
    x = 141,114,715.02/18,290.64
  6. Step 6: Final answer
    x = 7,715.13

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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.