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Finding the Fourth Proportional to 14,484.77, 19,978.67 and 13,293.60

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Solution

The fourth proportional to 14,484.77, 19,978.67 and 13,293.60 is: 18,335.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,484.77 : 19,978.67 = 13,293.60 : x
  2. Step 2: Convert to fraction form
    14,484.77/19,978.67 = 13,293.60/x
  3. Step 3: Cross multiply
    14,484.77x = 19,978.67 × 13,293.60
  4. Step 4: Simplify right side
    14,484.77x = 265,588,281.15
  5. Step 5: Solve for x
    x = 265,588,281.15/14,484.77
  6. Step 6: Final answer
    x = 18,335.69

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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.