Home / 10,369.59-14,309.55-6,391.08

Finding the Fourth Proportional to 10,369.59, 14,309.55 and 6,391.08

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Solution

The fourth proportional to 10,369.59, 14,309.55 and 6,391.08 is: 8,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369.59 : 14,309.55 = 6,391.08 : x
  2. Step 2: Convert to fraction form
    10,369.59/14,309.55 = 6,391.08/x
  3. Step 3: Cross multiply
    10,369.59x = 14,309.55 × 6,391.08
  4. Step 4: Simplify right side
    10,369.59x = 91,453,478.81
  5. Step 5: Solve for x
    x = 91,453,478.81/10,369.59
  6. Step 6: Final answer
    x = 8,819.39

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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.