Home / 19,901.69-27,465.65-11,518.19

Finding the Fourth Proportional to 19,901.69, 27,465.65 and 11,518.19

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Solution

The fourth proportional to 19,901.69, 27,465.65 and 11,518.19 is: 15,895.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901.69 : 27,465.65 = 11,518.19 : x
  2. Step 2: Convert to fraction form
    19,901.69/27,465.65 = 11,518.19/x
  3. Step 3: Cross multiply
    19,901.69x = 27,465.65 × 11,518.19
  4. Step 4: Simplify right side
    19,901.69x = 316,354,575.17
  5. Step 5: Solve for x
    x = 316,354,575.17/19,901.69
  6. Step 6: Final answer
    x = 15,895.86

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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.