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Finding the Fourth Proportional to 13,746.84, 18,970.56 and 7,459.08

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Solution

The fourth proportional to 13,746.84, 18,970.56 and 7,459.08 is: 10,293.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.84 : 18,970.56 = 7,459.08 : x
  2. Step 2: Convert to fraction form
    13,746.84/18,970.56 = 7,459.08/x
  3. Step 3: Cross multiply
    13,746.84x = 18,970.56 × 7,459.08
  4. Step 4: Simplify right side
    13,746.84x = 141,502,924.68
  5. Step 5: Solve for x
    x = 141,502,924.68/13,746.84
  6. Step 6: Final answer
    x = 10,293.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.