Home / 15,360.30-21,188.37-9,693.03

Finding the Fourth Proportional to 15,360.30, 21,188.37 and 9,693.03

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Solution

The fourth proportional to 15,360.30, 21,188.37 and 9,693.03 is: 13,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.30 : 21,188.37 = 9,693.03 : x
  2. Step 2: Convert to fraction form
    15,360.30/21,188.37 = 9,693.03/x
  3. Step 3: Cross multiply
    15,360.30x = 21,188.37 × 9,693.03
  4. Step 4: Simplify right side
    15,360.30x = 205,379,506.06
  5. Step 5: Solve for x
    x = 205,379,506.06/15,360.30
  6. Step 6: Final answer
    x = 13,370.80

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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.