Home / 13,435.51-20,153.23-3,574.78

Finding the Fourth Proportional to 13,435.51, 20,153.23 and 3,574.78

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Solution

The fourth proportional to 13,435.51, 20,153.23 and 3,574.78 is: 5,362.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.51 : 20,153.23 = 3,574.78 : x
  2. Step 2: Convert to fraction form
    13,435.51/20,153.23 = 3,574.78/x
  3. Step 3: Cross multiply
    13,435.51x = 20,153.23 × 3,574.78
  4. Step 4: Simplify right side
    13,435.51x = 72,043,437.69
  5. Step 5: Solve for x
    x = 72,043,437.69/13,435.51
  6. Step 6: Final answer
    x = 5,362.17

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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.