Home / 13,088.85-18,060.17-7,784.97

Finding the Fourth Proportional to 13,088.85, 18,060.17 and 7,784.97

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Solution

The fourth proportional to 13,088.85, 18,060.17 and 7,784.97 is: 10,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.85 : 18,060.17 = 7,784.97 : x
  2. Step 2: Convert to fraction form
    13,088.85/18,060.17 = 7,784.97/x
  3. Step 3: Cross multiply
    13,088.85x = 18,060.17 × 7,784.97
  4. Step 4: Simplify right side
    13,088.85x = 140,597,842.72
  5. Step 5: Solve for x
    x = 140,597,842.72/13,088.85
  6. Step 6: Final answer
    x = 10,741.80

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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.