Home / 12,835.80-19,256.40-5,436.45

Finding the Fourth Proportional to 12,835.80, 19,256.40 and 5,436.45

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Solution

The fourth proportional to 12,835.80, 19,256.40 and 5,436.45 is: 8,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.80 : 19,256.40 = 5,436.45 : x
  2. Step 2: Convert to fraction form
    12,835.80/19,256.40 = 5,436.45/x
  3. Step 3: Cross multiply
    12,835.80x = 19,256.40 × 5,436.45
  4. Step 4: Simplify right side
    12,835.80x = 104,686,455.78
  5. Step 5: Solve for x
    x = 104,686,455.78/12,835.80
  6. Step 6: Final answer
    x = 8,155.82

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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.