Home / 10,239.48-15,389.51-8,495.79

Finding the Fourth Proportional to 10,239.48, 15,389.51 and 8,495.79

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Solution

The fourth proportional to 10,239.48, 15,389.51 and 8,495.79 is: 12,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.48 : 15,389.51 = 8,495.79 : x
  2. Step 2: Convert to fraction form
    10,239.48/15,389.51 = 8,495.79/x
  3. Step 3: Cross multiply
    10,239.48x = 15,389.51 × 8,495.79
  4. Step 4: Simplify right side
    10,239.48x = 130,746,002.68
  5. Step 5: Solve for x
    x = 130,746,002.68/10,239.48
  6. Step 6: Final answer
    x = 12,768.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.