Home / 10,911.39-15,058.32-6,437.76

Finding the Fourth Proportional to 10,911.39, 15,058.32 and 6,437.76

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Solution

The fourth proportional to 10,911.39, 15,058.32 and 6,437.76 is: 8,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.39 : 15,058.32 = 6,437.76 : x
  2. Step 2: Convert to fraction form
    10,911.39/15,058.32 = 6,437.76/x
  3. Step 3: Cross multiply
    10,911.39x = 15,058.32 × 6,437.76
  4. Step 4: Simplify right side
    10,911.39x = 96,941,850.16
  5. Step 5: Solve for x
    x = 96,941,850.16/10,911.39
  6. Step 6: Final answer
    x = 8,884.46

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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.