Home / 8,385.54-11,573.55-5,405.10

Finding the Fourth Proportional to 8,385.54, 11,573.55 and 5,405.10

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Solution

The fourth proportional to 8,385.54, 11,573.55 and 5,405.10 is: 7,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.54 : 11,573.55 = 5,405.10 : x
  2. Step 2: Convert to fraction form
    8,385.54/11,573.55 = 5,405.10/x
  3. Step 3: Cross multiply
    8,385.54x = 11,573.55 × 5,405.10
  4. Step 4: Simplify right side
    8,385.54x = 62,556,195.11
  5. Step 5: Solve for x
    x = 62,556,195.11/8,385.54
  6. Step 6: Final answer
    x = 7,460.01

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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.