Home / 19,488.18-26,895.26-10,989.86

Finding the Fourth Proportional to 19,488.18, 26,895.26 and 10,989.86

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Solution

The fourth proportional to 19,488.18, 26,895.26 and 10,989.86 is: 15,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.18 : 26,895.26 = 10,989.86 : x
  2. Step 2: Convert to fraction form
    19,488.18/26,895.26 = 10,989.86/x
  3. Step 3: Cross multiply
    19,488.18x = 26,895.26 × 10,989.86
  4. Step 4: Simplify right side
    19,488.18x = 295,575,142.06
  5. Step 5: Solve for x
    x = 295,575,142.06/19,488.18
  6. Step 6: Final answer
    x = 15,166.89

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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.