Home / 10,556.74-15,826.88-5,289.04

Finding the Fourth Proportional to 10,556.74, 15,826.88 and 5,289.04

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Solution

The fourth proportional to 10,556.74, 15,826.88 and 5,289.04 is: 7,929.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.74 : 15,826.88 = 5,289.04 : x
  2. Step 2: Convert to fraction form
    10,556.74/15,826.88 = 5,289.04/x
  3. Step 3: Cross multiply
    10,556.74x = 15,826.88 × 5,289.04
  4. Step 4: Simplify right side
    10,556.74x = 83,709,001.40
  5. Step 5: Solve for x
    x = 83,709,001.40/10,556.74
  6. Step 6: Final answer
    x = 7,929.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.