Home / 18,526.60-25,567.30-10,143.08

Finding the Fourth Proportional to 18,526.60, 25,567.30 and 10,143.08

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Solution

The fourth proportional to 18,526.60, 25,567.30 and 10,143.08 is: 13,997.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.60 : 25,567.30 = 10,143.08 : x
  2. Step 2: Convert to fraction form
    18,526.60/25,567.30 = 10,143.08/x
  3. Step 3: Cross multiply
    18,526.60x = 25,567.30 × 10,143.08
  4. Step 4: Simplify right side
    18,526.60x = 259,331,169.28
  5. Step 5: Solve for x
    x = 259,331,169.28/18,526.60
  6. Step 6: Final answer
    x = 13,997.77

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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.