Home / 19,988.67-27,583.64-10,913.86

Finding the Fourth Proportional to 19,988.67, 27,583.64 and 10,913.86

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Solution

The fourth proportional to 19,988.67, 27,583.64 and 10,913.86 is: 15,060.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.67 : 27,583.64 = 10,913.86 : x
  2. Step 2: Convert to fraction form
    19,988.67/27,583.64 = 10,913.86/x
  3. Step 3: Cross multiply
    19,988.67x = 27,583.64 × 10,913.86
  4. Step 4: Simplify right side
    19,988.67x = 301,043,985.25
  5. Step 5: Solve for x
    x = 301,043,985.25/19,988.67
  6. Step 6: Final answer
    x = 15,060.73

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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.