Home / 13,870.01-20,804.56-5,547.79

Finding the Fourth Proportional to 13,870.01, 20,804.56 and 5,547.79

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Solution

The fourth proportional to 13,870.01, 20,804.56 and 5,547.79 is: 8,321.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,870.01 : 20,804.56 = 5,547.79 : x
  2. Step 2: Convert to fraction form
    13,870.01/20,804.56 = 5,547.79/x
  3. Step 3: Cross multiply
    13,870.01x = 20,804.56 × 5,547.79
  4. Step 4: Simplify right side
    13,870.01x = 115,419,302.18
  5. Step 5: Solve for x
    x = 115,419,302.18/13,870.01
  6. Step 6: Final answer
    x = 8,321.50

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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.