Home / 11,477.16-15,837.52-6,440.72

Finding the Fourth Proportional to 11,477.16, 15,837.52 and 6,440.72

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Solution

The fourth proportional to 11,477.16, 15,837.52 and 6,440.72 is: 8,887.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.16 : 15,837.52 = 6,440.72 : x
  2. Step 2: Convert to fraction form
    11,477.16/15,837.52 = 6,440.72/x
  3. Step 3: Cross multiply
    11,477.16x = 15,837.52 × 6,440.72
  4. Step 4: Simplify right side
    11,477.16x = 102,005,031.81
  5. Step 5: Solve for x
    x = 102,005,031.81/11,477.16
  6. Step 6: Final answer
    x = 8,887.65

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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.