Home / 11,487.86-15,841.58-10,818.16

Finding the Fourth Proportional to 11,487.86, 15,841.58 and 10,818.16

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Solution

The fourth proportional to 11,487.86, 15,841.58 and 10,818.16 is: 14,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.86 : 15,841.58 = 10,818.16 : x
  2. Step 2: Convert to fraction form
    11,487.86/15,841.58 = 10,818.16/x
  3. Step 3: Cross multiply
    11,487.86x = 15,841.58 × 10,818.16
  4. Step 4: Simplify right side
    11,487.86x = 171,376,747.09
  5. Step 5: Solve for x
    x = 171,376,747.09/11,487.86
  6. Step 6: Final answer
    x = 14,918.07

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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.