Home / 10,913.72-15,058.32-6,437.12

Finding the Fourth Proportional to 10,913.72, 15,058.32 and 6,437.12

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Solution

The fourth proportional to 10,913.72, 15,058.32 and 6,437.12 is: 8,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.72 : 15,058.32 = 6,437.12 : x
  2. Step 2: Convert to fraction form
    10,913.72/15,058.32 = 6,437.12/x
  3. Step 3: Cross multiply
    10,913.72x = 15,058.32 × 6,437.12
  4. Step 4: Simplify right side
    10,913.72x = 96,932,212.84
  5. Step 5: Solve for x
    x = 96,932,212.84/10,913.72
  6. Step 6: Final answer
    x = 8,881.68

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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.