Home / 15,525.75-21,430.94-9,237.99

Finding the Fourth Proportional to 15,525.75, 21,430.94 and 9,237.99

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Solution

The fourth proportional to 15,525.75, 21,430.94 and 9,237.99 is: 12,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.75 : 21,430.94 = 9,237.99 : x
  2. Step 2: Convert to fraction form
    15,525.75/21,430.94 = 9,237.99/x
  3. Step 3: Cross multiply
    15,525.75x = 21,430.94 × 9,237.99
  4. Step 4: Simplify right side
    15,525.75x = 197,978,763.22
  5. Step 5: Solve for x
    x = 197,978,763.22/15,525.75
  6. Step 6: Final answer
    x = 12,751.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.