Home / 11,988.02-16,545.60-9,150.74

Finding the Fourth Proportional to 11,988.02, 16,545.60 and 9,150.74

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Solution

The fourth proportional to 11,988.02, 16,545.60 and 9,150.74 is: 12,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.02 : 16,545.60 = 9,150.74 : x
  2. Step 2: Convert to fraction form
    11,988.02/16,545.60 = 9,150.74/x
  3. Step 3: Cross multiply
    11,988.02x = 16,545.60 × 9,150.74
  4. Step 4: Simplify right side
    11,988.02x = 151,404,483.74
  5. Step 5: Solve for x
    x = 151,404,483.74/11,988.02
  6. Step 6: Final answer
    x = 12,629.65

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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.