Home / 7,815.66-10,786.63-4,457.70

Finding the Fourth Proportional to 7,815.66, 10,786.63 and 4,457.70

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Solution

The fourth proportional to 7,815.66, 10,786.63 and 4,457.70 is: 6,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.66 : 10,786.63 = 4,457.70 : x
  2. Step 2: Convert to fraction form
    7,815.66/10,786.63 = 4,457.70/x
  3. Step 3: Cross multiply
    7,815.66x = 10,786.63 × 4,457.70
  4. Step 4: Simplify right side
    7,815.66x = 48,083,588.77
  5. Step 5: Solve for x
    x = 48,083,588.77/7,815.66
  6. Step 6: Final answer
    x = 6,152.21

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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.