Home / 15,325.06-21,150.87-9,360.16

Finding the Fourth Proportional to 15,325.06, 21,150.87 and 9,360.16

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Solution

The fourth proportional to 15,325.06, 21,150.87 and 9,360.16 is: 12,918.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.06 : 21,150.87 = 9,360.16 : x
  2. Step 2: Convert to fraction form
    15,325.06/21,150.87 = 9,360.16/x
  3. Step 3: Cross multiply
    15,325.06x = 21,150.87 × 9,360.16
  4. Step 4: Simplify right side
    15,325.06x = 197,975,527.34
  5. Step 5: Solve for x
    x = 197,975,527.34/15,325.06
  6. Step 6: Final answer
    x = 12,918.42

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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.