Home / 13,970.16-20,945.52-5,202.72

Finding the Fourth Proportional to 13,970.16, 20,945.52 and 5,202.72

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Solution

The fourth proportional to 13,970.16, 20,945.52 and 5,202.72 is: 7,800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.16 : 20,945.52 = 5,202.72 : x
  2. Step 2: Convert to fraction form
    13,970.16/20,945.52 = 5,202.72/x
  3. Step 3: Cross multiply
    13,970.16x = 20,945.52 × 5,202.72
  4. Step 4: Simplify right side
    13,970.16x = 108,973,675.81
  5. Step 5: Solve for x
    x = 108,973,675.81/13,970.16
  6. Step 6: Final answer
    x = 7,800.46

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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.