Home / 16,699.57-23,045.67-9,145.78

Finding the Fourth Proportional to 16,699.57, 23,045.67 and 9,145.78

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Solution

The fourth proportional to 16,699.57, 23,045.67 and 9,145.78 is: 12,621.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,699.57 : 23,045.67 = 9,145.78 : x
  2. Step 2: Convert to fraction form
    16,699.57/23,045.67 = 9,145.78/x
  3. Step 3: Cross multiply
    16,699.57x = 23,045.67 × 9,145.78
  4. Step 4: Simplify right side
    16,699.57x = 210,770,627.77
  5. Step 5: Solve for x
    x = 210,770,627.77/16,699.57
  6. Step 6: Final answer
    x = 12,621.32

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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.