Home / 10,386.88-14,333.81-5,671.16

Finding the Fourth Proportional to 10,386.88, 14,333.81 and 5,671.16

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Solution

The fourth proportional to 10,386.88, 14,333.81 and 5,671.16 is: 7,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.88 : 14,333.81 = 5,671.16 : x
  2. Step 2: Convert to fraction form
    10,386.88/14,333.81 = 5,671.16/x
  3. Step 3: Cross multiply
    10,386.88x = 14,333.81 × 5,671.16
  4. Step 4: Simplify right side
    10,386.88x = 81,289,272.43
  5. Step 5: Solve for x
    x = 81,289,272.43/10,386.88
  6. Step 6: Final answer
    x = 7,826.15

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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.