Home / 19,308.55-28,959.75-7,460.56

Finding the Fourth Proportional to 19,308.55, 28,959.75 and 7,460.56

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Solution

The fourth proportional to 19,308.55, 28,959.75 and 7,460.56 is: 11,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,308.55 : 28,959.75 = 7,460.56 : x
  2. Step 2: Convert to fraction form
    19,308.55/28,959.75 = 7,460.56/x
  3. Step 3: Cross multiply
    19,308.55x = 28,959.75 × 7,460.56
  4. Step 4: Simplify right side
    19,308.55x = 216,055,952.46
  5. Step 5: Solve for x
    x = 216,055,952.46/19,308.55
  6. Step 6: Final answer
    x = 11,189.65

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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.