Home / 14,137.47-21,210.12-4,276.80

Finding the Fourth Proportional to 14,137.47, 21,210.12 and 4,276.80

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Solution

The fourth proportional to 14,137.47, 21,210.12 and 4,276.80 is: 6,416.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.47 : 21,210.12 = 4,276.80 : x
  2. Step 2: Convert to fraction form
    14,137.47/21,210.12 = 4,276.80/x
  3. Step 3: Cross multiply
    14,137.47x = 21,210.12 × 4,276.80
  4. Step 4: Simplify right side
    14,137.47x = 90,711,441.22
  5. Step 5: Solve for x
    x = 90,711,441.22/14,137.47
  6. Step 6: Final answer
    x = 6,416.38

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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.