Home / 7,140.08-10,697.12-6,984.56

Finding the Fourth Proportional to 7,140.08, 10,697.12 and 6,984.56

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Solution

The fourth proportional to 7,140.08, 10,697.12 and 6,984.56 is: 10,464.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.08 : 10,697.12 = 6,984.56 : x
  2. Step 2: Convert to fraction form
    7,140.08/10,697.12 = 6,984.56/x
  3. Step 3: Cross multiply
    7,140.08x = 10,697.12 × 6,984.56
  4. Step 4: Simplify right side
    7,140.08x = 74,714,676.47
  5. Step 5: Solve for x
    x = 74,714,676.47/7,140.08
  6. Step 6: Final answer
    x = 10,464.12

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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.