Home / 13,526.12-18,664.62-7,859.80

Finding the Fourth Proportional to 13,526.12, 18,664.62 and 7,859.80

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Solution

The fourth proportional to 13,526.12, 18,664.62 and 7,859.80 is: 10,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.12 : 18,664.62 = 7,859.80 : x
  2. Step 2: Convert to fraction form
    13,526.12/18,664.62 = 7,859.80/x
  3. Step 3: Cross multiply
    13,526.12x = 18,664.62 × 7,859.80
  4. Step 4: Simplify right side
    13,526.12x = 146,700,180.28
  5. Step 5: Solve for x
    x = 146,700,180.28/13,526.12
  6. Step 6: Final answer
    x = 10,845.70

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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.