Home / 7,821.02-10,784.15-4,984.60

Finding the Fourth Proportional to 7,821.02, 10,784.15 and 4,984.60

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Solution

The fourth proportional to 7,821.02, 10,784.15 and 4,984.60 is: 6,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.02 : 10,784.15 = 4,984.60 : x
  2. Step 2: Convert to fraction form
    7,821.02/10,784.15 = 4,984.60/x
  3. Step 3: Cross multiply
    7,821.02x = 10,784.15 × 4,984.60
  4. Step 4: Simplify right side
    7,821.02x = 53,754,674.09
  5. Step 5: Solve for x
    x = 53,754,674.09/7,821.02
  6. Step 6: Final answer
    x = 6,873.10

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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.