Home / 14,148.78-21,225.60-7,573.20

Finding the Fourth Proportional to 14,148.78, 21,225.60 and 7,573.20

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Solution

The fourth proportional to 14,148.78, 21,225.60 and 7,573.20 is: 11,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.78 : 21,225.60 = 7,573.20 : x
  2. Step 2: Convert to fraction form
    14,148.78/21,225.60 = 7,573.20/x
  3. Step 3: Cross multiply
    14,148.78x = 21,225.60 × 7,573.20
  4. Step 4: Simplify right side
    14,148.78x = 160,745,713.92
  5. Step 5: Solve for x
    x = 160,745,713.92/14,148.78
  6. Step 6: Final answer
    x = 11,361.10

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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.