Home / 15,243.06-21,035.30-8,528.70

Finding the Fourth Proportional to 15,243.06, 21,035.30 and 8,528.70

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Solution

The fourth proportional to 15,243.06, 21,035.30 and 8,528.70 is: 11,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.06 : 21,035.30 = 8,528.70 : x
  2. Step 2: Convert to fraction form
    15,243.06/21,035.30 = 8,528.70/x
  3. Step 3: Cross multiply
    15,243.06x = 21,035.30 × 8,528.70
  4. Step 4: Simplify right side
    15,243.06x = 179,403,763.11
  5. Step 5: Solve for x
    x = 179,403,763.11/15,243.06
  6. Step 6: Final answer
    x = 11,769.54

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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.