Home / 10,857.03-14,981.85-6,319.02

Finding the Fourth Proportional to 10,857.03, 14,981.85 and 6,319.02

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Solution

The fourth proportional to 10,857.03, 14,981.85 and 6,319.02 is: 8,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,857.03 : 14,981.85 = 6,319.02 : x
  2. Step 2: Convert to fraction form
    10,857.03/14,981.85 = 6,319.02/x
  3. Step 3: Cross multiply
    10,857.03x = 14,981.85 × 6,319.02
  4. Step 4: Simplify right side
    10,857.03x = 94,670,609.79
  5. Step 5: Solve for x
    x = 94,670,609.79/10,857.03
  6. Step 6: Final answer
    x = 8,719.75

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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.