Home / 7,981.52-11,013.53-4,578.35

Finding the Fourth Proportional to 7,981.52, 11,013.53 and 4,578.35

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Solution

The fourth proportional to 7,981.52, 11,013.53 and 4,578.35 is: 6,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.52 : 11,013.53 = 4,578.35 : x
  2. Step 2: Convert to fraction form
    7,981.52/11,013.53 = 4,578.35/x
  3. Step 3: Cross multiply
    7,981.52x = 11,013.53 × 4,578.35
  4. Step 4: Simplify right side
    7,981.52x = 50,423,748.09
  5. Step 5: Solve for x
    x = 50,423,748.09/7,981.52
  6. Step 6: Final answer
    x = 6,317.57

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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.