Home / 7,824.02-11,736.05-1,980.63

Finding the Fourth Proportional to 7,824.02, 11,736.05 and 1,980.63

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Solution

The fourth proportional to 7,824.02, 11,736.05 and 1,980.63 is: 2,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.02 : 11,736.05 = 1,980.63 : x
  2. Step 2: Convert to fraction form
    7,824.02/11,736.05 = 1,980.63/x
  3. Step 3: Cross multiply
    7,824.02x = 11,736.05 × 1,980.63
  4. Step 4: Simplify right side
    7,824.02x = 23,244,772.71
  5. Step 5: Solve for x
    x = 23,244,772.71/7,824.02
  6. Step 6: Final answer
    x = 2,970.95

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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.