Home / 7,405.03-10,218.18-4,420.45

Finding the Fourth Proportional to 7,405.03, 10,218.18 and 4,420.45

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Solution

The fourth proportional to 7,405.03, 10,218.18 and 4,420.45 is: 6,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.03 : 10,218.18 = 4,420.45 : x
  2. Step 2: Convert to fraction form
    7,405.03/10,218.18 = 4,420.45/x
  3. Step 3: Cross multiply
    7,405.03x = 10,218.18 × 4,420.45
  4. Step 4: Simplify right side
    7,405.03x = 45,168,953.78
  5. Step 5: Solve for x
    x = 45,168,953.78/7,405.03
  6. Step 6: Final answer
    x = 6,099.77

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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.