Home / 15,105.05-20,852.55-9,442.95

Finding the Fourth Proportional to 15,105.05, 20,852.55 and 9,442.95

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Solution

The fourth proportional to 15,105.05, 20,852.55 and 9,442.95 is: 13,036.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.05 : 20,852.55 = 9,442.95 : x
  2. Step 2: Convert to fraction form
    15,105.05/20,852.55 = 9,442.95/x
  3. Step 3: Cross multiply
    15,105.05x = 20,852.55 × 9,442.95
  4. Step 4: Simplify right side
    15,105.05x = 196,909,587.02
  5. Step 5: Solve for x
    x = 196,909,587.02/15,105.05
  6. Step 6: Final answer
    x = 13,036.01

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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.