Home / 10,854.51-14,977.62-6,138.69

Finding the Fourth Proportional to 10,854.51, 14,977.62 and 6,138.69

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Solution

The fourth proportional to 10,854.51, 14,977.62 and 6,138.69 is: 8,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.51 : 14,977.62 = 6,138.69 : x
  2. Step 2: Convert to fraction form
    10,854.51/14,977.62 = 6,138.69/x
  3. Step 3: Cross multiply
    10,854.51x = 14,977.62 × 6,138.69
  4. Step 4: Simplify right side
    10,854.51x = 91,942,966.12
  5. Step 5: Solve for x
    x = 91,942,966.12/10,854.51
  6. Step 6: Final answer
    x = 8,470.49

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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.