Home / 12,289.08-18,439.06-6,444.30

Finding the Fourth Proportional to 12,289.08, 18,439.06 and 6,444.30

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Solution

The fourth proportional to 12,289.08, 18,439.06 and 6,444.30 is: 9,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.08 : 18,439.06 = 6,444.30 : x
  2. Step 2: Convert to fraction form
    12,289.08/18,439.06 = 6,444.30/x
  3. Step 3: Cross multiply
    12,289.08x = 18,439.06 × 6,444.30
  4. Step 4: Simplify right side
    12,289.08x = 118,826,834.36
  5. Step 5: Solve for x
    x = 118,826,834.36/12,289.08
  6. Step 6: Final answer
    x = 9,669.30

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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.