Home / 14,883.48-20,538.36-8,913.78

Finding the Fourth Proportional to 14,883.48, 20,538.36 and 8,913.78

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Solution

The fourth proportional to 14,883.48, 20,538.36 and 8,913.78 is: 12,300.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,883.48 : 20,538.36 = 8,913.78 : x
  2. Step 2: Convert to fraction form
    14,883.48/20,538.36 = 8,913.78/x
  3. Step 3: Cross multiply
    14,883.48x = 20,538.36 × 8,913.78
  4. Step 4: Simplify right side
    14,883.48x = 183,074,422.60
  5. Step 5: Solve for x
    x = 183,074,422.60/14,883.48
  6. Step 6: Final answer
    x = 12,300.51

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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.