Home / 12,430.56-17,153.64-7,125.60

Finding the Fourth Proportional to 12,430.56, 17,153.64 and 7,125.60

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Solution

The fourth proportional to 12,430.56, 17,153.64 and 7,125.60 is: 9,833.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.56 : 17,153.64 = 7,125.60 : x
  2. Step 2: Convert to fraction form
    12,430.56/17,153.64 = 7,125.60/x
  3. Step 3: Cross multiply
    12,430.56x = 17,153.64 × 7,125.60
  4. Step 4: Simplify right side
    12,430.56x = 122,229,977.18
  5. Step 5: Solve for x
    x = 122,229,977.18/12,430.56
  6. Step 6: Final answer
    x = 9,833.02

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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.