Home / 18,933.60-26,128.23-10,435.72

Finding the Fourth Proportional to 18,933.60, 26,128.23 and 10,435.72

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Solution

The fourth proportional to 18,933.60, 26,128.23 and 10,435.72 is: 14,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.60 : 26,128.23 = 10,435.72 : x
  2. Step 2: Convert to fraction form
    18,933.60/26,128.23 = 10,435.72/x
  3. Step 3: Cross multiply
    18,933.60x = 26,128.23 × 10,435.72
  4. Step 4: Simplify right side
    18,933.60x = 272,666,892.38
  5. Step 5: Solve for x
    x = 272,666,892.38/18,933.60
  6. Step 6: Final answer
    x = 14,401.22

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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.