Home / 13,342.89-20,013.93-5,551.50

Finding the Fourth Proportional to 13,342.89, 20,013.93 and 5,551.50

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Solution

The fourth proportional to 13,342.89, 20,013.93 and 5,551.50 is: 8,327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.89 : 20,013.93 = 5,551.50 : x
  2. Step 2: Convert to fraction form
    13,342.89/20,013.93 = 5,551.50/x
  3. Step 3: Cross multiply
    13,342.89x = 20,013.93 × 5,551.50
  4. Step 4: Simplify right side
    13,342.89x = 111,107,332.40
  5. Step 5: Solve for x
    x = 111,107,332.40/13,342.89
  6. Step 6: Final answer
    x = 8,327.08

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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.