Home / 11,621.86-16,038.29-6,316.68

Finding the Fourth Proportional to 11,621.86, 16,038.29 and 6,316.68

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Solution

The fourth proportional to 11,621.86, 16,038.29 and 6,316.68 is: 8,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.86 : 16,038.29 = 6,316.68 : x
  2. Step 2: Convert to fraction form
    11,621.86/16,038.29 = 6,316.68/x
  3. Step 3: Cross multiply
    11,621.86x = 16,038.29 × 6,316.68
  4. Step 4: Simplify right side
    11,621.86x = 101,308,665.49
  5. Step 5: Solve for x
    x = 101,308,665.49/11,621.86
  6. Step 6: Final answer
    x = 8,717.08

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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.