Home / 9,916.77-13,686.81-5,938.68

Finding the Fourth Proportional to 9,916.77, 13,686.81 and 5,938.68

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Solution

The fourth proportional to 9,916.77, 13,686.81 and 5,938.68 is: 8,196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.77 : 13,686.81 = 5,938.68 : x
  2. Step 2: Convert to fraction form
    9,916.77/13,686.81 = 5,938.68/x
  3. Step 3: Cross multiply
    9,916.77x = 13,686.81 × 5,938.68
  4. Step 4: Simplify right side
    9,916.77x = 81,281,584.81
  5. Step 5: Solve for x
    x = 81,281,584.81/9,916.77
  6. Step 6: Final answer
    x = 8,196.38

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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.