Home / 8,431.68-11,636.51-6,303.52

Finding the Fourth Proportional to 8,431.68, 11,636.51 and 6,303.52

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Solution

The fourth proportional to 8,431.68, 11,636.51 and 6,303.52 is: 8,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.68 : 11,636.51 = 6,303.52 : x
  2. Step 2: Convert to fraction form
    8,431.68/11,636.51 = 6,303.52/x
  3. Step 3: Cross multiply
    8,431.68x = 11,636.51 × 6,303.52
  4. Step 4: Simplify right side
    8,431.68x = 73,350,956.54
  5. Step 5: Solve for x
    x = 73,350,956.54/8,431.68
  6. Step 6: Final answer
    x = 8,699.45

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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.