Home / 14,981.68-20,666.88-12,152.36

Finding the Fourth Proportional to 14,981.68, 20,666.88 and 12,152.36

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Solution

The fourth proportional to 14,981.68, 20,666.88 and 12,152.36 is: 16,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.68 : 20,666.88 = 12,152.36 : x
  2. Step 2: Convert to fraction form
    14,981.68/20,666.88 = 12,152.36/x
  3. Step 3: Cross multiply
    14,981.68x = 20,666.88 × 12,152.36
  4. Step 4: Simplify right side
    14,981.68x = 251,151,365.84
  5. Step 5: Solve for x
    x = 251,151,365.84/14,981.68
  6. Step 6: Final answer
    x = 16,763.90

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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.