Home / 10,806.91-14,913.68-6,615.16

Finding the Fourth Proportional to 10,806.91, 14,913.68 and 6,615.16

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Solution

The fourth proportional to 10,806.91, 14,913.68 and 6,615.16 is: 9,129.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,806.91 : 14,913.68 = 6,615.16 : x
  2. Step 2: Convert to fraction form
    10,806.91/14,913.68 = 6,615.16/x
  3. Step 3: Cross multiply
    10,806.91x = 14,913.68 × 6,615.16
  4. Step 4: Simplify right side
    10,806.91x = 98,656,379.39
  5. Step 5: Solve for x
    x = 98,656,379.39/10,806.91
  6. Step 6: Final answer
    x = 9,129.01

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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.