Home / 11,307.20-15,610.20-7,535.48

Finding the Fourth Proportional to 11,307.20, 15,610.20 and 7,535.48

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Solution

The fourth proportional to 11,307.20, 15,610.20 and 7,535.48 is: 10,403.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.20 : 15,610.20 = 7,535.48 : x
  2. Step 2: Convert to fraction form
    11,307.20/15,610.20 = 7,535.48/x
  3. Step 3: Cross multiply
    11,307.20x = 15,610.20 × 7,535.48
  4. Step 4: Simplify right side
    11,307.20x = 117,630,349.90
  5. Step 5: Solve for x
    x = 117,630,349.90/11,307.20
  6. Step 6: Final answer
    x = 10,403.14

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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.