Home / 11,477.29-15,837.36-6,440.47

Finding the Fourth Proportional to 11,477.29, 15,837.36 and 6,440.47

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Solution

The fourth proportional to 11,477.29, 15,837.36 and 6,440.47 is: 8,887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.29 : 15,837.36 = 6,440.47 : x
  2. Step 2: Convert to fraction form
    11,477.29/15,837.36 = 6,440.47/x
  3. Step 3: Cross multiply
    11,477.29x = 15,837.36 × 6,440.47
  4. Step 4: Simplify right side
    11,477.29x = 102,000,041.96
  5. Step 5: Solve for x
    x = 102,000,041.96/11,477.29
  6. Step 6: Final answer
    x = 8,887.12

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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.