Home / 17,622.40-26,431.02-5,139.07

Finding the Fourth Proportional to 17,622.40, 26,431.02 and 5,139.07

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Solution

The fourth proportional to 17,622.40, 26,431.02 and 5,139.07 is: 7,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,622.40 : 26,431.02 = 5,139.07 : x
  2. Step 2: Convert to fraction form
    17,622.40/26,431.02 = 5,139.07/x
  3. Step 3: Cross multiply
    17,622.40x = 26,431.02 × 5,139.07
  4. Step 4: Simplify right side
    17,622.40x = 135,830,861.95
  5. Step 5: Solve for x
    x = 135,830,861.95/17,622.40
  6. Step 6: Final answer
    x = 7,707.85

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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.