Home / 14,840.24-20,479.65-8,790.81

Finding the Fourth Proportional to 14,840.24, 20,479.65 and 8,790.81

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Solution

The fourth proportional to 14,840.24, 20,479.65 and 8,790.81 is: 12,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.24 : 20,479.65 = 8,790.81 : x
  2. Step 2: Convert to fraction form
    14,840.24/20,479.65 = 8,790.81/x
  3. Step 3: Cross multiply
    14,840.24x = 20,479.65 × 8,790.81
  4. Step 4: Simplify right side
    14,840.24x = 180,032,712.02
  5. Step 5: Solve for x
    x = 180,032,712.02/14,840.24
  6. Step 6: Final answer
    x = 12,131.39

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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.