Home / 13,623.02-18,801.13-9,156.07

Finding the Fourth Proportional to 13,623.02, 18,801.13 and 9,156.07

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Solution

The fourth proportional to 13,623.02, 18,801.13 and 9,156.07 is: 12,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.02 : 18,801.13 = 9,156.07 : x
  2. Step 2: Convert to fraction form
    13,623.02/18,801.13 = 9,156.07/x
  3. Step 3: Cross multiply
    13,623.02x = 18,801.13 × 9,156.07
  4. Step 4: Simplify right side
    13,623.02x = 172,144,462.36
  5. Step 5: Solve for x
    x = 172,144,462.36/13,623.02
  6. Step 6: Final answer
    x = 12,636.29

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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.