Home / 13,386.30-20,079.66-5,070.21

Finding the Fourth Proportional to 13,386.30, 20,079.66 and 5,070.21

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Solution

The fourth proportional to 13,386.30, 20,079.66 and 5,070.21 is: 7,605.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.30 : 20,079.66 = 5,070.21 : x
  2. Step 2: Convert to fraction form
    13,386.30/20,079.66 = 5,070.21/x
  3. Step 3: Cross multiply
    13,386.30x = 20,079.66 × 5,070.21
  4. Step 4: Simplify right side
    13,386.30x = 101,808,092.93
  5. Step 5: Solve for x
    x = 101,808,092.93/13,386.30
  6. Step 6: Final answer
    x = 7,605.39

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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.