Home / 13,869.83-20,804.69-6,470.18

Finding the Fourth Proportional to 13,869.83, 20,804.69 and 6,470.18

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Solution

The fourth proportional to 13,869.83, 20,804.69 and 6,470.18 is: 9,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.83 : 20,804.69 = 6,470.18 : x
  2. Step 2: Convert to fraction form
    13,869.83/20,804.69 = 6,470.18/x
  3. Step 3: Cross multiply
    13,869.83x = 20,804.69 × 6,470.18
  4. Step 4: Simplify right side
    13,869.83x = 134,610,089.14
  5. Step 5: Solve for x
    x = 134,610,089.14/13,869.83
  6. Step 6: Final answer
    x = 9,705.24

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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.