Home / 7,015.18-9,680.07-4,030.60

Finding the Fourth Proportional to 7,015.18, 9,680.07 and 4,030.60

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Solution

The fourth proportional to 7,015.18, 9,680.07 and 4,030.60 is: 5,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.18 : 9,680.07 = 4,030.60 : x
  2. Step 2: Convert to fraction form
    7,015.18/9,680.07 = 4,030.60/x
  3. Step 3: Cross multiply
    7,015.18x = 9,680.07 × 4,030.60
  4. Step 4: Simplify right side
    7,015.18x = 39,016,490.14
  5. Step 5: Solve for x
    x = 39,016,490.14/7,015.18
  6. Step 6: Final answer
    x = 5,561.72

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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.