Home / 12,429.32-17,153.16-7,125.02

Finding the Fourth Proportional to 12,429.32, 17,153.16 and 7,125.02

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Solution

The fourth proportional to 12,429.32, 17,153.16 and 7,125.02 is: 9,832.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.32 : 17,153.16 = 7,125.02 : x
  2. Step 2: Convert to fraction form
    12,429.32/17,153.16 = 7,125.02/x
  3. Step 3: Cross multiply
    12,429.32x = 17,153.16 × 7,125.02
  4. Step 4: Simplify right side
    12,429.32x = 122,216,608.06
  5. Step 5: Solve for x
    x = 122,216,608.06/12,429.32
  6. Step 6: Final answer
    x = 9,832.93

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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.