Home / 19,191.52-26,486.82-10,809.64

Finding the Fourth Proportional to 19,191.52, 26,486.82 and 10,809.64

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Solution

The fourth proportional to 19,191.52, 26,486.82 and 10,809.64 is: 14,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.52 : 26,486.82 = 10,809.64 : x
  2. Step 2: Convert to fraction form
    19,191.52/26,486.82 = 10,809.64/x
  3. Step 3: Cross multiply
    19,191.52x = 26,486.82 × 10,809.64
  4. Step 4: Simplify right side
    19,191.52x = 286,312,988.94
  5. Step 5: Solve for x
    x = 286,312,988.94/19,191.52
  6. Step 6: Final answer
    x = 14,918.72

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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.