Home / 16,918.79-23,347.59-9,365.12

Finding the Fourth Proportional to 16,918.79, 23,347.59 and 9,365.12

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Solution

The fourth proportional to 16,918.79, 23,347.59 and 9,365.12 is: 12,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.79 : 23,347.59 = 9,365.12 : x
  2. Step 2: Convert to fraction form
    16,918.79/23,347.59 = 9,365.12/x
  3. Step 3: Cross multiply
    16,918.79x = 23,347.59 × 9,365.12
  4. Step 4: Simplify right side
    16,918.79x = 218,652,865.32
  5. Step 5: Solve for x
    x = 218,652,865.32/16,918.79
  6. Step 6: Final answer
    x = 12,923.67

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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.