Home / 13,970.04-20,960.64-5,212.32

Finding the Fourth Proportional to 13,970.04, 20,960.64 and 5,212.32

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Solution

The fourth proportional to 13,970.04, 20,960.64 and 5,212.32 is: 7,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.04 : 20,960.64 = 5,212.32 : x
  2. Step 2: Convert to fraction form
    13,970.04/20,960.64 = 5,212.32/x
  3. Step 3: Cross multiply
    13,970.04x = 20,960.64 × 5,212.32
  4. Step 4: Simplify right side
    13,970.04x = 109,253,563.08
  5. Step 5: Solve for x
    x = 109,253,563.08/13,970.04
  6. Step 6: Final answer
    x = 7,820.56

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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.