Home / 10,239.79-15,339.99-6,279.49

Finding the Fourth Proportional to 10,239.79, 15,339.99 and 6,279.49

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Solution

The fourth proportional to 10,239.79, 15,339.99 and 6,279.49 is: 9,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.79 : 15,339.99 = 6,279.49 : x
  2. Step 2: Convert to fraction form
    10,239.79/15,339.99 = 6,279.49/x
  3. Step 3: Cross multiply
    10,239.79x = 15,339.99 × 6,279.49
  4. Step 4: Simplify right side
    10,239.79x = 96,327,313.81
  5. Step 5: Solve for x
    x = 96,327,313.81/10,239.79
  6. Step 6: Final answer
    x = 9,407.16

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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.