Home / 7,039.80-10,559.70-4,454.20

Finding the Fourth Proportional to 7,039.80, 10,559.70 and 4,454.20

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Solution

The fourth proportional to 7,039.80, 10,559.70 and 4,454.20 is: 6,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.80 : 10,559.70 = 4,454.20 : x
  2. Step 2: Convert to fraction form
    7,039.80/10,559.70 = 4,454.20/x
  3. Step 3: Cross multiply
    7,039.80x = 10,559.70 × 4,454.20
  4. Step 4: Simplify right side
    7,039.80x = 47,035,015.74
  5. Step 5: Solve for x
    x = 47,035,015.74/7,039.80
  6. Step 6: Final answer
    x = 6,681.30

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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.