Home / 12,935.40-19,403.10-11,574.60

Finding the Fourth Proportional to 12,935.40, 19,403.10 and 11,574.60

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Solution

The fourth proportional to 12,935.40, 19,403.10 and 11,574.60 is: 17,361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.40 : 19,403.10 = 11,574.60 : x
  2. Step 2: Convert to fraction form
    12,935.40/19,403.10 = 11,574.60/x
  3. Step 3: Cross multiply
    12,935.40x = 19,403.10 × 11,574.60
  4. Step 4: Simplify right side
    12,935.40x = 224,583,121.26
  5. Step 5: Solve for x
    x = 224,583,121.26/12,935.40
  6. Step 6: Final answer
    x = 17,361.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.