Home / 13,393.81-20,088.74-3,533.78

Finding the Fourth Proportional to 13,393.81, 20,088.74 and 3,533.78

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Solution

The fourth proportional to 13,393.81, 20,088.74 and 3,533.78 is: 5,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.81 : 20,088.74 = 3,533.78 : x
  2. Step 2: Convert to fraction form
    13,393.81/20,088.74 = 3,533.78/x
  3. Step 3: Cross multiply
    13,393.81x = 20,088.74 × 3,533.78
  4. Step 4: Simplify right side
    13,393.81x = 70,989,246.69
  5. Step 5: Solve for x
    x = 70,989,246.69/13,393.81
  6. Step 6: Final answer
    x = 5,300.15

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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.