Home / 9,988.90-14,979.46-3,745.51

Finding the Fourth Proportional to 9,988.90, 14,979.46 and 3,745.51

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Solution

The fourth proportional to 9,988.90, 14,979.46 and 3,745.51 is: 5,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.90 : 14,979.46 = 3,745.51 : x
  2. Step 2: Convert to fraction form
    9,988.90/14,979.46 = 3,745.51/x
  3. Step 3: Cross multiply
    9,988.90x = 14,979.46 × 3,745.51
  4. Step 4: Simplify right side
    9,988.90x = 56,105,670.41
  5. Step 5: Solve for x
    x = 56,105,670.41/9,988.90
  6. Step 6: Final answer
    x = 5,616.80

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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.