Home / 18,511.80-25,547.36-10,556.58

Finding the Fourth Proportional to 18,511.80, 25,547.36 and 10,556.58

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Solution

The fourth proportional to 18,511.80, 25,547.36 and 10,556.58 is: 14,568.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.80 : 25,547.36 = 10,556.58 : x
  2. Step 2: Convert to fraction form
    18,511.80/25,547.36 = 10,556.58/x
  3. Step 3: Cross multiply
    18,511.80x = 25,547.36 × 10,556.58
  4. Step 4: Simplify right side
    18,511.80x = 269,692,749.63
  5. Step 5: Solve for x
    x = 269,692,749.63/18,511.80
  6. Step 6: Final answer
    x = 14,568.69

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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.