Home / 9,637.80-13,288.50-6,648.90

Finding the Fourth Proportional to 9,637.80, 13,288.50 and 6,648.90

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Solution

The fourth proportional to 9,637.80, 13,288.50 and 6,648.90 is: 9,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,637.80 : 13,288.50 = 6,648.90 : x
  2. Step 2: Convert to fraction form
    9,637.80/13,288.50 = 6,648.90/x
  3. Step 3: Cross multiply
    9,637.80x = 13,288.50 × 6,648.90
  4. Step 4: Simplify right side
    9,637.80x = 88,353,907.65
  5. Step 5: Solve for x
    x = 88,353,907.65/9,637.80
  6. Step 6: Final answer
    x = 9,167.44

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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.