Home / 13,515.36-18,650.08-7,848.29

Finding the Fourth Proportional to 13,515.36, 18,650.08 and 7,848.29

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Solution

The fourth proportional to 13,515.36, 18,650.08 and 7,848.29 is: 10,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.36 : 18,650.08 = 7,848.29 : x
  2. Step 2: Convert to fraction form
    13,515.36/18,650.08 = 7,848.29/x
  3. Step 3: Cross multiply
    13,515.36x = 18,650.08 × 7,848.29
  4. Step 4: Simplify right side
    13,515.36x = 146,371,292.80
  5. Step 5: Solve for x
    x = 146,371,292.80/13,515.36
  6. Step 6: Final answer
    x = 10,830.00

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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.