Home / 13,875.84-20,824.68-6,476.52

Finding the Fourth Proportional to 13,875.84, 20,824.68 and 6,476.52

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Solution

The fourth proportional to 13,875.84, 20,824.68 and 6,476.52 is: 9,719.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.84 : 20,824.68 = 6,476.52 : x
  2. Step 2: Convert to fraction form
    13,875.84/20,824.68 = 6,476.52/x
  3. Step 3: Cross multiply
    13,875.84x = 20,824.68 × 6,476.52
  4. Step 4: Simplify right side
    13,875.84x = 134,871,456.51
  5. Step 5: Solve for x
    x = 134,871,456.51/13,875.84
  6. Step 6: Final answer
    x = 9,719.88

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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.