Home / 13,235.51-19,850.23-7,900.19

Finding the Fourth Proportional to 13,235.51, 19,850.23 and 7,900.19

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Solution

The fourth proportional to 13,235.51, 19,850.23 and 7,900.19 is: 11,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.51 : 19,850.23 = 7,900.19 : x
  2. Step 2: Convert to fraction form
    13,235.51/19,850.23 = 7,900.19/x
  3. Step 3: Cross multiply
    13,235.51x = 19,850.23 × 7,900.19
  4. Step 4: Simplify right side
    13,235.51x = 156,820,549.04
  5. Step 5: Solve for x
    x = 156,820,549.04/13,235.51
  6. Step 6: Final answer
    x = 11,848.47

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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.