Home / 9,045.96-12,479.58-6,395.64

Finding the Fourth Proportional to 9,045.96, 12,479.58 and 6,395.64

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Solution

The fourth proportional to 9,045.96, 12,479.58 and 6,395.64 is: 8,823.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,045.96 : 12,479.58 = 6,395.64 : x
  2. Step 2: Convert to fraction form
    9,045.96/12,479.58 = 6,395.64/x
  3. Step 3: Cross multiply
    9,045.96x = 12,479.58 × 6,395.64
  4. Step 4: Simplify right side
    9,045.96x = 79,814,901.03
  5. Step 5: Solve for x
    x = 79,814,901.03/9,045.96
  6. Step 6: Final answer
    x = 8,823.26

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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.