Home / 14,380.40-21,570.64-4,520.48

Finding the Fourth Proportional to 14,380.40, 21,570.64 and 4,520.48

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Solution

The fourth proportional to 14,380.40, 21,570.64 and 4,520.48 is: 6,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,380.40 : 21,570.64 = 4,520.48 : x
  2. Step 2: Convert to fraction form
    14,380.40/21,570.64 = 4,520.48/x
  3. Step 3: Cross multiply
    14,380.40x = 21,570.64 × 4,520.48
  4. Step 4: Simplify right side
    14,380.40x = 97,509,646.71
  5. Step 5: Solve for x
    x = 97,509,646.71/14,380.40
  6. Step 6: Final answer
    x = 6,780.73

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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.