Home / 13,872.02-19,153.41-8,574.10

Finding the Fourth Proportional to 13,872.02, 19,153.41 and 8,574.10

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Solution

The fourth proportional to 13,872.02, 19,153.41 and 8,574.10 is: 11,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.02 : 19,153.41 = 8,574.10 : x
  2. Step 2: Convert to fraction form
    13,872.02/19,153.41 = 8,574.10/x
  3. Step 3: Cross multiply
    13,872.02x = 19,153.41 × 8,574.10
  4. Step 4: Simplify right side
    13,872.02x = 164,223,252.68
  5. Step 5: Solve for x
    x = 164,223,252.68/13,872.02
  6. Step 6: Final answer
    x = 11,838.45

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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.