Home / 12,258.77-16,916.36-6,880.79

Finding the Fourth Proportional to 12,258.77, 16,916.36 and 6,880.79

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Solution

The fourth proportional to 12,258.77, 16,916.36 and 6,880.79 is: 9,495.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.77 : 16,916.36 = 6,880.79 : x
  2. Step 2: Convert to fraction form
    12,258.77/16,916.36 = 6,880.79/x
  3. Step 3: Cross multiply
    12,258.77x = 16,916.36 × 6,880.79
  4. Step 4: Simplify right side
    12,258.77x = 116,397,928.61
  5. Step 5: Solve for x
    x = 116,397,928.61/12,258.77
  6. Step 6: Final answer
    x = 9,495.08

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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.