Home / 15,426.93-21,289.17-8,353.36

Finding the Fourth Proportional to 15,426.93, 21,289.17 and 8,353.36

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Solution

The fourth proportional to 15,426.93, 21,289.17 and 8,353.36 is: 11,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.93 : 21,289.17 = 8,353.36 : x
  2. Step 2: Convert to fraction form
    15,426.93/21,289.17 = 8,353.36/x
  3. Step 3: Cross multiply
    15,426.93x = 21,289.17 × 8,353.36
  4. Step 4: Simplify right side
    15,426.93x = 177,836,101.11
  5. Step 5: Solve for x
    x = 177,836,101.11/15,426.93
  6. Step 6: Final answer
    x = 11,527.64

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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.