Home / 11,580.98-15,981.74-6,275.79

Finding the Fourth Proportional to 11,580.98, 15,981.74 and 6,275.79

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Solution

The fourth proportional to 11,580.98, 15,981.74 and 6,275.79 is: 8,660.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.98 : 15,981.74 = 6,275.79 : x
  2. Step 2: Convert to fraction form
    11,580.98/15,981.74 = 6,275.79/x
  3. Step 3: Cross multiply
    11,580.98x = 15,981.74 × 6,275.79
  4. Step 4: Simplify right side
    11,580.98x = 100,298,044.07
  5. Step 5: Solve for x
    x = 100,298,044.07/11,580.98
  6. Step 6: Final answer
    x = 8,660.58

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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.