Home / 7,478.81-11,221.45-4,012.01

Finding the Fourth Proportional to 7,478.81, 11,221.45 and 4,012.01

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Solution

The fourth proportional to 7,478.81, 11,221.45 and 4,012.01 is: 6,019.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.81 : 11,221.45 = 4,012.01 : x
  2. Step 2: Convert to fraction form
    7,478.81/11,221.45 = 4,012.01/x
  3. Step 3: Cross multiply
    7,478.81x = 11,221.45 × 4,012.01
  4. Step 4: Simplify right side
    7,478.81x = 45,020,503.48
  5. Step 5: Solve for x
    x = 45,020,503.48/7,478.81
  6. Step 6: Final answer
    x = 6,019.75

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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.