Home / 11,818.36-16,312.11-7,345.48

Finding the Fourth Proportional to 11,818.36, 16,312.11 and 7,345.48

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Solution

The fourth proportional to 11,818.36, 16,312.11 and 7,345.48 is: 10,138.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.36 : 16,312.11 = 7,345.48 : x
  2. Step 2: Convert to fraction form
    11,818.36/16,312.11 = 7,345.48/x
  3. Step 3: Cross multiply
    11,818.36x = 16,312.11 × 7,345.48
  4. Step 4: Simplify right side
    11,818.36x = 119,820,277.76
  5. Step 5: Solve for x
    x = 119,820,277.76/11,818.36
  6. Step 6: Final answer
    x = 10,138.49

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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.