Home / 14,730.75-20,328.30-8,762.31

Finding the Fourth Proportional to 14,730.75, 20,328.30 and 8,762.31

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Solution

The fourth proportional to 14,730.75, 20,328.30 and 8,762.31 is: 12,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,730.75 : 20,328.30 = 8,762.31 : x
  2. Step 2: Convert to fraction form
    14,730.75/20,328.30 = 8,762.31/x
  3. Step 3: Cross multiply
    14,730.75x = 20,328.30 × 8,762.31
  4. Step 4: Simplify right side
    14,730.75x = 178,122,866.37
  5. Step 5: Solve for x
    x = 178,122,866.37/14,730.75
  6. Step 6: Final answer
    x = 12,091.91

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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.