Home / 12,557.37-17,327.90-7,521.46

Finding the Fourth Proportional to 12,557.37, 17,327.90 and 7,521.46

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Solution

The fourth proportional to 12,557.37, 17,327.90 and 7,521.46 is: 10,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.37 : 17,327.90 = 7,521.46 : x
  2. Step 2: Convert to fraction form
    12,557.37/17,327.90 = 7,521.46/x
  3. Step 3: Cross multiply
    12,557.37x = 17,327.90 × 7,521.46
  4. Step 4: Simplify right side
    12,557.37x = 130,331,106.73
  5. Step 5: Solve for x
    x = 130,331,106.73/12,557.37
  6. Step 6: Final answer
    x = 10,378.85

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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.