Home / 13,275.84-19,913.73-3,415.10

Finding the Fourth Proportional to 13,275.84, 19,913.73 and 3,415.10

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Solution

The fourth proportional to 13,275.84, 19,913.73 and 3,415.10 is: 5,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.84 : 19,913.73 = 3,415.10 : x
  2. Step 2: Convert to fraction form
    13,275.84/19,913.73 = 3,415.10/x
  3. Step 3: Cross multiply
    13,275.84x = 19,913.73 × 3,415.10
  4. Step 4: Simplify right side
    13,275.84x = 68,007,379.32
  5. Step 5: Solve for x
    x = 68,007,379.32/13,275.84
  6. Step 6: Final answer
    x = 5,122.64

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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.