Home / 17,619.64-26,428.95-7,086.40

Finding the Fourth Proportional to 17,619.64, 26,428.95 and 7,086.40

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Solution

The fourth proportional to 17,619.64, 26,428.95 and 7,086.40 is: 10,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619.64 : 26,428.95 = 7,086.40 : x
  2. Step 2: Convert to fraction form
    17,619.64/26,428.95 = 7,086.40/x
  3. Step 3: Cross multiply
    17,619.64x = 26,428.95 × 7,086.40
  4. Step 4: Simplify right side
    17,619.64x = 187,286,045.21
  5. Step 5: Solve for x
    x = 187,286,045.21/17,619.64
  6. Step 6: Final answer
    x = 10,629.39

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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.