Home / 13,184.40-19,762.80-12,102.24

Finding the Fourth Proportional to 13,184.40, 19,762.80 and 12,102.24

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Solution

The fourth proportional to 13,184.40, 19,762.80 and 12,102.24 is: 18,140.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.40 : 19,762.80 = 12,102.24 : x
  2. Step 2: Convert to fraction form
    13,184.40/19,762.80 = 12,102.24/x
  3. Step 3: Cross multiply
    13,184.40x = 19,762.80 × 12,102.24
  4. Step 4: Simplify right side
    13,184.40x = 239,174,148.67
  5. Step 5: Solve for x
    x = 239,174,148.67/13,184.40
  6. Step 6: Final answer
    x = 18,140.69

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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.