Home / 8,869.10-12,238.80-4,890.25

Finding the Fourth Proportional to 8,869.10, 12,238.80 and 4,890.25

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Solution

The fourth proportional to 8,869.10, 12,238.80 and 4,890.25 is: 6,748.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.10 : 12,238.80 = 4,890.25 : x
  2. Step 2: Convert to fraction form
    8,869.10/12,238.80 = 4,890.25/x
  3. Step 3: Cross multiply
    8,869.10x = 12,238.80 × 4,890.25
  4. Step 4: Simplify right side
    8,869.10x = 59,850,730.51
  5. Step 5: Solve for x
    x = 59,850,730.51/8,869.10
  6. Step 6: Final answer
    x = 6,748.23

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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.