Home / 13,485.31-20,237.07-4,720.30

Finding the Fourth Proportional to 13,485.31, 20,237.07 and 4,720.30

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Solution

The fourth proportional to 13,485.31, 20,237.07 and 4,720.30 is: 7,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.31 : 20,237.07 = 4,720.30 : x
  2. Step 2: Convert to fraction form
    13,485.31/20,237.07 = 4,720.30/x
  3. Step 3: Cross multiply
    13,485.31x = 20,237.07 × 4,720.30
  4. Step 4: Simplify right side
    13,485.31x = 95,525,041.52
  5. Step 5: Solve for x
    x = 95,525,041.52/13,485.31
  6. Step 6: Final answer
    x = 7,083.64

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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.