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Finding the Fourth Proportional to 14,484.38, 19,988.44 and 7,860.38

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Solution

The fourth proportional to 14,484.38, 19,988.44 and 7,860.38 is: 10,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,484.38 : 19,988.44 = 7,860.38 : x
  2. Step 2: Convert to fraction form
    14,484.38/19,988.44 = 7,860.38/x
  3. Step 3: Cross multiply
    14,484.38x = 19,988.44 × 7,860.38
  4. Step 4: Simplify right side
    14,484.38x = 157,116,734.01
  5. Step 5: Solve for x
    x = 157,116,734.01/14,484.38
  6. Step 6: Final answer
    x = 10,847.32

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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.