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Finding the Fourth Proportional to 14,089.78, 19,444.51 and 7,802.16

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Solution

The fourth proportional to 14,089.78, 19,444.51 and 7,802.16 is: 10,767.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.78 : 19,444.51 = 7,802.16 : x
  2. Step 2: Convert to fraction form
    14,089.78/19,444.51 = 7,802.16/x
  3. Step 3: Cross multiply
    14,089.78x = 19,444.51 × 7,802.16
  4. Step 4: Simplify right side
    14,089.78x = 151,709,071.09
  5. Step 5: Solve for x
    x = 151,709,071.09/14,089.78
  6. Step 6: Final answer
    x = 10,767.31

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1.5x scale

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.