Home / 13,248.50-19,881.87-5,457.32

Finding the Fourth Proportional to 13,248.50, 19,881.87 and 5,457.32

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Solution

The fourth proportional to 13,248.50, 19,881.87 and 5,457.32 is: 8,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.50 : 19,881.87 = 5,457.32 : x
  2. Step 2: Convert to fraction form
    13,248.50/19,881.87 = 5,457.32/x
  3. Step 3: Cross multiply
    13,248.50x = 19,881.87 × 5,457.32
  4. Step 4: Simplify right side
    13,248.50x = 108,501,726.79
  5. Step 5: Solve for x
    x = 108,501,726.79/13,248.50
  6. Step 6: Final answer
    x = 8,189.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.