Home / 7,155.30-10,735.38-6,465.18

Finding the Fourth Proportional to 7,155.30, 10,735.38 and 6,465.18

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Solution

The fourth proportional to 7,155.30, 10,735.38 and 6,465.18 is: 9,699.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.30 : 10,735.38 = 6,465.18 : x
  2. Step 2: Convert to fraction form
    7,155.30/10,735.38 = 6,465.18/x
  3. Step 3: Cross multiply
    7,155.30x = 10,735.38 × 6,465.18
  4. Step 4: Simplify right side
    7,155.30x = 69,406,164.07
  5. Step 5: Solve for x
    x = 69,406,164.07/7,155.30
  6. Step 6: Final answer
    x = 9,699.97

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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.