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Finding the Fourth Proportional to 14,575.40, 21,879.30 and 8,014.40

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Solution

The fourth proportional to 14,575.40, 21,879.30 and 8,014.40 is: 12,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,575.40 : 21,879.30 = 8,014.40 : x
  2. Step 2: Convert to fraction form
    14,575.40/21,879.30 = 8,014.40/x
  3. Step 3: Cross multiply
    14,575.40x = 21,879.30 × 8,014.40
  4. Step 4: Simplify right side
    14,575.40x = 175,349,461.92
  5. Step 5: Solve for x
    x = 175,349,461.92/14,575.40
  6. Step 6: Final answer
    x = 12,030.51

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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.