Home / 17,140.78-23,666.53-13,368.16

Finding the Fourth Proportional to 17,140.78, 23,666.53 and 13,368.16

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Solution

The fourth proportional to 17,140.78, 23,666.53 and 13,368.16 is: 18,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,140.78 : 23,666.53 = 13,368.16 : x
  2. Step 2: Convert to fraction form
    17,140.78/23,666.53 = 13,368.16/x
  3. Step 3: Cross multiply
    17,140.78x = 23,666.53 × 13,368.16
  4. Step 4: Simplify right side
    17,140.78x = 316,377,841.35
  5. Step 5: Solve for x
    x = 316,377,841.35/17,140.78
  6. Step 6: Final answer
    x = 18,457.62

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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.