Home / 13,997.76-19,316.80-7,710

Finding the Fourth Proportional to 13,997.76, 19,316.80 and 7,710

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Solution

The fourth proportional to 13,997.76, 19,316.80 and 7,710 is: 10,639.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.76 : 19,316.80 = 7,710 : x
  2. Step 2: Convert to fraction form
    13,997.76/19,316.80 = 7,710/x
  3. Step 3: Cross multiply
    13,997.76x = 19,316.80 × 7,710
  4. Step 4: Simplify right side
    13,997.76x = 148,932,528
  5. Step 5: Solve for x
    x = 148,932,528/13,997.76
  6. Step 6: Final answer
    x = 10,639.74

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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.