Home / 10,386.36-14,348.34-8,986.68

Finding the Fourth Proportional to 10,386.36, 14,348.34 and 8,986.68

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Solution

The fourth proportional to 10,386.36, 14,348.34 and 8,986.68 is: 12,414.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.36 : 14,348.34 = 8,986.68 : x
  2. Step 2: Convert to fraction form
    10,386.36/14,348.34 = 8,986.68/x
  3. Step 3: Cross multiply
    10,386.36x = 14,348.34 × 8,986.68
  4. Step 4: Simplify right side
    10,386.36x = 128,943,940.11
  5. Step 5: Solve for x
    x = 128,943,940.11/10,386.36
  6. Step 6: Final answer
    x = 12,414.74

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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.