Home / 13,570.38-20,376.23-12,902.13

Finding the Fourth Proportional to 13,570.38, 20,376.23 and 12,902.13

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Solution

The fourth proportional to 13,570.38, 20,376.23 and 12,902.13 is: 19,372.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.38 : 20,376.23 = 12,902.13 : x
  2. Step 2: Convert to fraction form
    13,570.38/20,376.23 = 12,902.13/x
  3. Step 3: Cross multiply
    13,570.38x = 20,376.23 × 12,902.13
  4. Step 4: Simplify right side
    13,570.38x = 262,896,768.37
  5. Step 5: Solve for x
    x = 262,896,768.37/13,570.38
  6. Step 6: Final answer
    x = 19,372.84

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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.