Home / 12,558.90-18,838.35-9,606.45

Finding the Fourth Proportional to 12,558.90, 18,838.35 and 9,606.45

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Solution

The fourth proportional to 12,558.90, 18,838.35 and 9,606.45 is: 14,409.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.90 : 18,838.35 = 9,606.45 : x
  2. Step 2: Convert to fraction form
    12,558.90/18,838.35 = 9,606.45/x
  3. Step 3: Cross multiply
    12,558.90x = 18,838.35 × 9,606.45
  4. Step 4: Simplify right side
    12,558.90x = 180,969,667.36
  5. Step 5: Solve for x
    x = 180,969,667.36/12,558.90
  6. Step 6: Final answer
    x = 14,409.68

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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.