Home / 11,289.07-15,570.52-7,307.11

Finding the Fourth Proportional to 11,289.07, 15,570.52 and 7,307.11

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Solution

The fourth proportional to 11,289.07, 15,570.52 and 7,307.11 is: 10,078.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.07 : 15,570.52 = 7,307.11 : x
  2. Step 2: Convert to fraction form
    11,289.07/15,570.52 = 7,307.11/x
  3. Step 3: Cross multiply
    11,289.07x = 15,570.52 × 7,307.11
  4. Step 4: Simplify right side
    11,289.07x = 113,775,502.40
  5. Step 5: Solve for x
    x = 113,775,502.40/11,289.07
  6. Step 6: Final answer
    x = 10,078.38

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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.