Home / 9,920.30-13,687.26-7,088.54

Finding the Fourth Proportional to 9,920.30, 13,687.26 and 7,088.54

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Solution

The fourth proportional to 9,920.30, 13,687.26 and 7,088.54 is: 9,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.30 : 13,687.26 = 7,088.54 : x
  2. Step 2: Convert to fraction form
    9,920.30/13,687.26 = 7,088.54/x
  3. Step 3: Cross multiply
    9,920.30x = 13,687.26 × 7,088.54
  4. Step 4: Simplify right side
    9,920.30x = 97,022,690.00
  5. Step 5: Solve for x
    x = 97,022,690.00/9,920.30
  6. Step 6: Final answer
    x = 9,780.22

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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.