Home / 13,887.18-19,173.25-12,392.52

Finding the Fourth Proportional to 13,887.18, 19,173.25 and 12,392.52

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Solution

The fourth proportional to 13,887.18, 19,173.25 and 12,392.52 is: 17,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.18 : 19,173.25 = 12,392.52 : x
  2. Step 2: Convert to fraction form
    13,887.18/19,173.25 = 12,392.52/x
  3. Step 3: Cross multiply
    13,887.18x = 19,173.25 × 12,392.52
  4. Step 4: Simplify right side
    13,887.18x = 237,604,925.01
  5. Step 5: Solve for x
    x = 237,604,925.01/13,887.18
  6. Step 6: Final answer
    x = 17,109.66

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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.