Home / 13,145.04-19,722.60-5,360.40

Finding the Fourth Proportional to 13,145.04, 19,722.60 and 5,360.40

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Solution

The fourth proportional to 13,145.04, 19,722.60 and 5,360.40 is: 8,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.04 : 19,722.60 = 5,360.40 : x
  2. Step 2: Convert to fraction form
    13,145.04/19,722.60 = 5,360.40/x
  3. Step 3: Cross multiply
    13,145.04x = 19,722.60 × 5,360.40
  4. Step 4: Simplify right side
    13,145.04x = 105,721,025.04
  5. Step 5: Solve for x
    x = 105,721,025.04/13,145.04
  6. Step 6: Final answer
    x = 8,042.66

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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.