Home / 7,253.39-10,009.78-4,420.40

Finding the Fourth Proportional to 7,253.39, 10,009.78 and 4,420.40

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Solution

The fourth proportional to 7,253.39, 10,009.78 and 4,420.40 is: 6,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,253.39 : 10,009.78 = 4,420.40 : x
  2. Step 2: Convert to fraction form
    7,253.39/10,009.78 = 4,420.40/x
  3. Step 3: Cross multiply
    7,253.39x = 10,009.78 × 4,420.40
  4. Step 4: Simplify right side
    7,253.39x = 44,247,170.41
  5. Step 5: Solve for x
    x = 44,247,170.41/7,253.39
  6. Step 6: Final answer
    x = 6,100.20

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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.