Home / 15,670.09-21,626.63-8,954.18

Finding the Fourth Proportional to 15,670.09, 21,626.63 and 8,954.18

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Solution

The fourth proportional to 15,670.09, 21,626.63 and 8,954.18 is: 12,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,670.09 : 21,626.63 = 8,954.18 : x
  2. Step 2: Convert to fraction form
    15,670.09/21,626.63 = 8,954.18/x
  3. Step 3: Cross multiply
    15,670.09x = 21,626.63 × 8,954.18
  4. Step 4: Simplify right side
    15,670.09x = 193,648,652.07
  5. Step 5: Solve for x
    x = 193,648,652.07/15,670.09
  6. Step 6: Final answer
    x = 12,357.85

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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.