Home / 16,400.78-24,603.60-8,610.20

Finding the Fourth Proportional to 16,400.78, 24,603.60 and 8,610.20

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Solution

The fourth proportional to 16,400.78, 24,603.60 and 8,610.20 is: 12,916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,400.78 : 24,603.60 = 8,610.20 : x
  2. Step 2: Convert to fraction form
    16,400.78/24,603.60 = 8,610.20/x
  3. Step 3: Cross multiply
    16,400.78x = 24,603.60 × 8,610.20
  4. Step 4: Simplify right side
    16,400.78x = 211,841,916.72
  5. Step 5: Solve for x
    x = 211,841,916.72/16,400.78
  6. Step 6: Final answer
    x = 12,916.58

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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.