Home / 7,962.96-10,989.02-4,378.06

Finding the Fourth Proportional to 7,962.96, 10,989.02 and 4,378.06

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Solution

The fourth proportional to 7,962.96, 10,989.02 and 4,378.06 is: 6,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.96 : 10,989.02 = 4,378.06 : x
  2. Step 2: Convert to fraction form
    7,962.96/10,989.02 = 4,378.06/x
  3. Step 3: Cross multiply
    7,962.96x = 10,989.02 × 4,378.06
  4. Step 4: Simplify right side
    7,962.96x = 48,110,588.90
  5. Step 5: Solve for x
    x = 48,110,588.90/7,962.96
  6. Step 6: Final answer
    x = 6,041.80

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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.