Home / 8,988.94-13,483.48-3,145.58

Finding the Fourth Proportional to 8,988.94, 13,483.48 and 3,145.58

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Solution

The fourth proportional to 8,988.94, 13,483.48 and 3,145.58 is: 4,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.94 : 13,483.48 = 3,145.58 : x
  2. Step 2: Convert to fraction form
    8,988.94/13,483.48 = 3,145.58/x
  3. Step 3: Cross multiply
    8,988.94x = 13,483.48 × 3,145.58
  4. Step 4: Simplify right side
    8,988.94x = 42,413,365.02
  5. Step 5: Solve for x
    x = 42,413,365.02/8,988.94
  6. Step 6: Final answer
    x = 4,718.39

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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.