Home / 13,050.40-19,573.20-8,111.20

Finding the Fourth Proportional to 13,050.40, 19,573.20 and 8,111.20

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Solution

The fourth proportional to 13,050.40, 19,573.20 and 8,111.20 is: 12,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.40 : 19,573.20 = 8,111.20 : x
  2. Step 2: Convert to fraction form
    13,050.40/19,573.20 = 8,111.20/x
  3. Step 3: Cross multiply
    13,050.40x = 19,573.20 × 8,111.20
  4. Step 4: Simplify right side
    13,050.40x = 158,762,139.84
  5. Step 5: Solve for x
    x = 158,762,139.84/13,050.40
  6. Step 6: Final answer
    x = 12,165.31

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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.