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Finding the Fourth Proportional to 13,859.52, 19,126.08 and 7,572

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Solution

The fourth proportional to 13,859.52, 19,126.08 and 7,572 is: 10,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.52 : 19,126.08 = 7,572 : x
  2. Step 2: Convert to fraction form
    13,859.52/19,126.08 = 7,572/x
  3. Step 3: Cross multiply
    13,859.52x = 19,126.08 × 7,572
  4. Step 4: Simplify right side
    13,859.52x = 144,822,677.76
  5. Step 5: Solve for x
    x = 144,822,677.76/13,859.52
  6. Step 6: Final answer
    x = 10,449.33

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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.