Home / 18,933.76-26,129.73-10,435.87

Finding the Fourth Proportional to 18,933.76, 26,129.73 and 10,435.87

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Solution

The fourth proportional to 18,933.76, 26,129.73 and 10,435.87 is: 14,402.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.76 : 26,129.73 = 10,435.87 : x
  2. Step 2: Convert to fraction form
    18,933.76/26,129.73 = 10,435.87/x
  3. Step 3: Cross multiply
    18,933.76x = 26,129.73 × 10,435.87
  4. Step 4: Simplify right side
    18,933.76x = 272,686,465.42
  5. Step 5: Solve for x
    x = 272,686,465.42/18,933.76
  6. Step 6: Final answer
    x = 14,402.13

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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.