Home / 15,629.46-21,569.25-8,916.18

Finding the Fourth Proportional to 15,629.46, 21,569.25 and 8,916.18

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Solution

The fourth proportional to 15,629.46, 21,569.25 and 8,916.18 is: 12,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.46 : 21,569.25 = 8,916.18 : x
  2. Step 2: Convert to fraction form
    15,629.46/21,569.25 = 8,916.18/x
  3. Step 3: Cross multiply
    15,629.46x = 21,569.25 × 8,916.18
  4. Step 4: Simplify right side
    15,629.46x = 192,315,315.47
  5. Step 5: Solve for x
    x = 192,315,315.47/15,629.46
  6. Step 6: Final answer
    x = 12,304.67

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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.