Home / 15,719.09-23,580.98-5,190.22

Finding the Fourth Proportional to 15,719.09, 23,580.98 and 5,190.22

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Solution

The fourth proportional to 15,719.09, 23,580.98 and 5,190.22 is: 7,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.09 : 23,580.98 = 5,190.22 : x
  2. Step 2: Convert to fraction form
    15,719.09/23,580.98 = 5,190.22/x
  3. Step 3: Cross multiply
    15,719.09x = 23,580.98 × 5,190.22
  4. Step 4: Simplify right side
    15,719.09x = 122,390,533.81
  5. Step 5: Solve for x
    x = 122,390,533.81/15,719.09
  6. Step 6: Final answer
    x = 7,786.11

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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.