Home / 12,430.46-17,153.52-7,124.96

Finding the Fourth Proportional to 12,430.46, 17,153.52 and 7,124.96

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Solution

The fourth proportional to 12,430.46, 17,153.52 and 7,124.96 is: 9,832.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.46 : 17,153.52 = 7,124.96 : x
  2. Step 2: Convert to fraction form
    12,430.46/17,153.52 = 7,124.96/x
  3. Step 3: Cross multiply
    12,430.46x = 17,153.52 × 7,124.96
  4. Step 4: Simplify right side
    12,430.46x = 122,218,143.86
  5. Step 5: Solve for x
    x = 122,218,143.86/12,430.46
  6. Step 6: Final answer
    x = 9,832.15

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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.