Home / 13,919.51-19,206.02-8,880.53

Finding the Fourth Proportional to 13,919.51, 19,206.02 and 8,880.53

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Solution

The fourth proportional to 13,919.51, 19,206.02 and 8,880.53 is: 12,253.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.51 : 19,206.02 = 8,880.53 : x
  2. Step 2: Convert to fraction form
    13,919.51/19,206.02 = 8,880.53/x
  3. Step 3: Cross multiply
    13,919.51x = 19,206.02 × 8,880.53
  4. Step 4: Simplify right side
    13,919.51x = 170,559,562.96
  5. Step 5: Solve for x
    x = 170,559,562.96/13,919.51
  6. Step 6: Final answer
    x = 12,253.27

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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.