Home / 9,256.64-12,776.21-6,389.39

Finding the Fourth Proportional to 9,256.64, 12,776.21 and 6,389.39

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Solution

The fourth proportional to 9,256.64, 12,776.21 and 6,389.39 is: 8,818.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,256.64 : 12,776.21 = 6,389.39 : x
  2. Step 2: Convert to fraction form
    9,256.64/12,776.21 = 6,389.39/x
  3. Step 3: Cross multiply
    9,256.64x = 12,776.21 × 6,389.39
  4. Step 4: Simplify right side
    9,256.64x = 81,632,124.52
  5. Step 5: Solve for x
    x = 81,632,124.52/9,256.64
  6. Step 6: Final answer
    x = 8,818.77

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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.