Home / 8,315.32-11,475.21-4,957.57

Finding the Fourth Proportional to 8,315.32, 11,475.21 and 4,957.57

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Solution

The fourth proportional to 8,315.32, 11,475.21 and 4,957.57 is: 6,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.32 : 11,475.21 = 4,957.57 : x
  2. Step 2: Convert to fraction form
    8,315.32/11,475.21 = 4,957.57/x
  3. Step 3: Cross multiply
    8,315.32x = 11,475.21 × 4,957.57
  4. Step 4: Simplify right side
    8,315.32x = 56,889,156.84
  5. Step 5: Solve for x
    x = 56,889,156.84/8,315.32
  6. Step 6: Final answer
    x = 6,841.49

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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.