Home / 8,156.32-11,257.47-4,970.65

Finding the Fourth Proportional to 8,156.32, 11,257.47 and 4,970.65

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Solution

The fourth proportional to 8,156.32, 11,257.47 and 4,970.65 is: 6,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.32 : 11,257.47 = 4,970.65 : x
  2. Step 2: Convert to fraction form
    8,156.32/11,257.47 = 4,970.65/x
  3. Step 3: Cross multiply
    8,156.32x = 11,257.47 × 4,970.65
  4. Step 4: Simplify right side
    8,156.32x = 55,956,943.26
  5. Step 5: Solve for x
    x = 55,956,943.26/8,156.32
  6. Step 6: Final answer
    x = 6,860.56

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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.