Home / 9,306.75-12,828.34-7,625.19

Finding the Fourth Proportional to 9,306.75, 12,828.34 and 7,625.19

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Solution

The fourth proportional to 9,306.75, 12,828.34 and 7,625.19 is: 10,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,306.75 : 12,828.34 = 7,625.19 : x
  2. Step 2: Convert to fraction form
    9,306.75/12,828.34 = 7,625.19/x
  3. Step 3: Cross multiply
    9,306.75x = 12,828.34 × 7,625.19
  4. Step 4: Simplify right side
    9,306.75x = 97,818,529.88
  5. Step 5: Solve for x
    x = 97,818,529.88/9,306.75
  6. Step 6: Final answer
    x = 10,510.49

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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.