Home / 16,946.97-23,386.78-9,778.40

Finding the Fourth Proportional to 16,946.97, 23,386.78 and 9,778.40

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Solution

The fourth proportional to 16,946.97, 23,386.78 and 9,778.40 is: 13,494.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,946.97 : 23,386.78 = 9,778.40 : x
  2. Step 2: Convert to fraction form
    16,946.97/23,386.78 = 9,778.40/x
  3. Step 3: Cross multiply
    16,946.97x = 23,386.78 × 9,778.40
  4. Step 4: Simplify right side
    16,946.97x = 228,685,151.76
  5. Step 5: Solve for x
    x = 228,685,151.76/16,946.97
  6. Step 6: Final answer
    x = 13,494.16

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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.