Home / 13,289.28-19,933.95-12,477.36

Finding the Fourth Proportional to 13,289.28, 19,933.95 and 12,477.36

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Solution

The fourth proportional to 13,289.28, 19,933.95 and 12,477.36 is: 18,716.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.28 : 19,933.95 = 12,477.36 : x
  2. Step 2: Convert to fraction form
    13,289.28/19,933.95 = 12,477.36/x
  3. Step 3: Cross multiply
    13,289.28x = 19,933.95 × 12,477.36
  4. Step 4: Simplify right side
    13,289.28x = 248,723,117.16
  5. Step 5: Solve for x
    x = 248,723,117.16/13,289.28
  6. Step 6: Final answer
    x = 18,716.07

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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.