Home / 11,619.86-16,035.81-6,315.08

Finding the Fourth Proportional to 11,619.86, 16,035.81 and 6,315.08

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Solution

The fourth proportional to 11,619.86, 16,035.81 and 6,315.08 is: 8,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.86 : 16,035.81 = 6,315.08 : x
  2. Step 2: Convert to fraction form
    11,619.86/16,035.81 = 6,315.08/x
  3. Step 3: Cross multiply
    11,619.86x = 16,035.81 × 6,315.08
  4. Step 4: Simplify right side
    11,619.86x = 101,267,423.01
  5. Step 5: Solve for x
    x = 101,267,423.01/11,619.86
  6. Step 6: Final answer
    x = 8,715.03

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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.