Home / 6,870.40-10,281.28-4,274.56

Finding the Fourth Proportional to 6,870.40, 10,281.28 and 4,274.56

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Solution

The fourth proportional to 6,870.40, 10,281.28 and 4,274.56 is: 6,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.40 : 10,281.28 = 4,274.56 : x
  2. Step 2: Convert to fraction form
    6,870.40/10,281.28 = 4,274.56/x
  3. Step 3: Cross multiply
    6,870.40x = 10,281.28 × 4,274.56
  4. Step 4: Simplify right side
    6,870.40x = 43,947,948.24
  5. Step 5: Solve for x
    x = 43,947,948.24/6,870.40
  6. Step 6: Final answer
    x = 6,396.71

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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.