Home / 11,285.92-15,570.12-7,034.50

Finding the Fourth Proportional to 11,285.92, 15,570.12 and 7,034.50

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Solution

The fourth proportional to 11,285.92, 15,570.12 and 7,034.50 is: 9,704.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.92 : 15,570.12 = 7,034.50 : x
  2. Step 2: Convert to fraction form
    11,285.92/15,570.12 = 7,034.50/x
  3. Step 3: Cross multiply
    11,285.92x = 15,570.12 × 7,034.50
  4. Step 4: Simplify right side
    11,285.92x = 109,528,009.14
  5. Step 5: Solve for x
    x = 109,528,009.14/11,285.92
  6. Step 6: Final answer
    x = 9,704.84

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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.