Home / 13,558.48-20,335.63-3,698.56

Finding the Fourth Proportional to 13,558.48, 20,335.63 and 3,698.56

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Solution

The fourth proportional to 13,558.48, 20,335.63 and 3,698.56 is: 5,547.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.48 : 20,335.63 = 3,698.56 : x
  2. Step 2: Convert to fraction form
    13,558.48/20,335.63 = 3,698.56/x
  3. Step 3: Cross multiply
    13,558.48x = 20,335.63 × 3,698.56
  4. Step 4: Simplify right side
    13,558.48x = 75,212,547.69
  5. Step 5: Solve for x
    x = 75,212,547.69/13,558.48
  6. Step 6: Final answer
    x = 5,547.27

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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.