Home / 8,409.86-11,605.61-4,875.12

Finding the Fourth Proportional to 8,409.86, 11,605.61 and 4,875.12

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Solution

The fourth proportional to 8,409.86, 11,605.61 and 4,875.12 is: 6,727.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.86 : 11,605.61 = 4,875.12 : x
  2. Step 2: Convert to fraction form
    8,409.86/11,605.61 = 4,875.12/x
  3. Step 3: Cross multiply
    8,409.86x = 11,605.61 × 4,875.12
  4. Step 4: Simplify right side
    8,409.86x = 56,578,741.42
  5. Step 5: Solve for x
    x = 56,578,741.42/8,409.86
  6. Step 6: Final answer
    x = 6,727.67

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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.