Home / 7,918.86-10,928.79-4,774.98

Finding the Fourth Proportional to 7,918.86, 10,928.79 and 4,774.98

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Solution

The fourth proportional to 7,918.86, 10,928.79 and 4,774.98 is: 6,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.86 : 10,928.79 = 4,774.98 : x
  2. Step 2: Convert to fraction form
    7,918.86/10,928.79 = 4,774.98/x
  3. Step 3: Cross multiply
    7,918.86x = 10,928.79 × 4,774.98
  4. Step 4: Simplify right side
    7,918.86x = 52,184,753.67
  5. Step 5: Solve for x
    x = 52,184,753.67/7,918.86
  6. Step 6: Final answer
    x = 6,589.93

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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.