Home / 8,583.90-12,867.09-4,878.30

Finding the Fourth Proportional to 8,583.90, 12,867.09 and 4,878.30

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Solution

The fourth proportional to 8,583.90, 12,867.09 and 4,878.30 is: 7,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,583.90 : 12,867.09 = 4,878.30 : x
  2. Step 2: Convert to fraction form
    8,583.90/12,867.09 = 4,878.30/x
  3. Step 3: Cross multiply
    8,583.90x = 12,867.09 × 4,878.30
  4. Step 4: Simplify right side
    8,583.90x = 62,769,525.15
  5. Step 5: Solve for x
    x = 62,769,525.15/8,583.90
  6. Step 6: Final answer
    x = 7,312.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.