Home / 13,948.52-20,838.49-8,977.64

Finding the Fourth Proportional to 13,948.52, 20,838.49 and 8,977.64

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Solution

The fourth proportional to 13,948.52, 20,838.49 and 8,977.64 is: 13,412.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.52 : 20,838.49 = 8,977.64 : x
  2. Step 2: Convert to fraction form
    13,948.52/20,838.49 = 8,977.64/x
  3. Step 3: Cross multiply
    13,948.52x = 20,838.49 × 8,977.64
  4. Step 4: Simplify right side
    13,948.52x = 187,080,461.36
  5. Step 5: Solve for x
    x = 187,080,461.36/13,948.52
  6. Step 6: Final answer
    x = 13,412.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.