Home / 17,620.64-26,430.45-7,087.40

Finding the Fourth Proportional to 17,620.64, 26,430.45 and 7,087.40

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Solution

The fourth proportional to 17,620.64, 26,430.45 and 7,087.40 is: 10,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.64 : 26,430.45 = 7,087.40 : x
  2. Step 2: Convert to fraction form
    17,620.64/26,430.45 = 7,087.40/x
  3. Step 3: Cross multiply
    17,620.64x = 26,430.45 × 7,087.40
  4. Step 4: Simplify right side
    17,620.64x = 187,323,171.33
  5. Step 5: Solve for x
    x = 187,323,171.33/17,620.64
  6. Step 6: Final answer
    x = 10,630.89

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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.