Home / 10,854.93-14,979.27-6,139.11

Finding the Fourth Proportional to 10,854.93, 14,979.27 and 6,139.11

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Solution

The fourth proportional to 10,854.93, 14,979.27 and 6,139.11 is: 8,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.93 : 14,979.27 = 6,139.11 : x
  2. Step 2: Convert to fraction form
    10,854.93/14,979.27 = 6,139.11/x
  3. Step 3: Cross multiply
    10,854.93x = 14,979.27 × 6,139.11
  4. Step 4: Simplify right side
    10,854.93x = 91,959,386.25
  5. Step 5: Solve for x
    x = 91,959,386.25/10,854.93
  6. Step 6: Final answer
    x = 8,471.67

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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.