Home / 13,913.08-19,206.70-7,943.60

Finding the Fourth Proportional to 13,913.08, 19,206.70 and 7,943.60

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Solution

The fourth proportional to 13,913.08, 19,206.70 and 7,943.60 is: 10,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.08 : 19,206.70 = 7,943.60 : x
  2. Step 2: Convert to fraction form
    13,913.08/19,206.70 = 7,943.60/x
  3. Step 3: Cross multiply
    13,913.08x = 19,206.70 × 7,943.60
  4. Step 4: Simplify right side
    13,913.08x = 152,570,342.12
  5. Step 5: Solve for x
    x = 152,570,342.12/13,913.08
  6. Step 6: Final answer
    x = 10,965.96

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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.