Home / 13,863.04-20,782.10-5,095.80

Finding the Fourth Proportional to 13,863.04, 20,782.10 and 5,095.80

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Solution

The fourth proportional to 13,863.04, 20,782.10 and 5,095.80 is: 7,639.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.04 : 20,782.10 = 5,095.80 : x
  2. Step 2: Convert to fraction form
    13,863.04/20,782.10 = 5,095.80/x
  3. Step 3: Cross multiply
    13,863.04x = 20,782.10 × 5,095.80
  4. Step 4: Simplify right side
    13,863.04x = 105,901,437.92
  5. Step 5: Solve for x
    x = 105,901,437.92/13,863.04
  6. Step 6: Final answer
    x = 7,639.12

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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.