Home / 14,980.68-20,665.50-12,151.36

Finding the Fourth Proportional to 14,980.68, 20,665.50 and 12,151.36

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Solution

The fourth proportional to 14,980.68, 20,665.50 and 12,151.36 is: 16,762.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.68 : 20,665.50 = 12,151.36 : x
  2. Step 2: Convert to fraction form
    14,980.68/20,665.50 = 12,151.36/x
  3. Step 3: Cross multiply
    14,980.68x = 20,665.50 × 12,151.36
  4. Step 4: Simplify right side
    14,980.68x = 251,113,930.08
  5. Step 5: Solve for x
    x = 251,113,930.08/14,980.68
  6. Step 6: Final answer
    x = 16,762.52

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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.