Home / 13,041.28-19,564.80-3,808

Finding the Fourth Proportional to 13,041.28, 19,564.80 and 3,808

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Solution

The fourth proportional to 13,041.28, 19,564.80 and 3,808 is: 5,712.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.28 : 19,564.80 = 3,808 : x
  2. Step 2: Convert to fraction form
    13,041.28/19,564.80 = 3,808/x
  3. Step 3: Cross multiply
    13,041.28x = 19,564.80 × 3,808
  4. Step 4: Simplify right side
    13,041.28x = 74,502,758.40
  5. Step 5: Solve for x
    x = 74,502,758.40/13,041.28
  6. Step 6: Final answer
    x = 5,712.84

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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.