Home / 13,035.61-17,988.70-7,727.27

Finding the Fourth Proportional to 13,035.61, 17,988.70 and 7,727.27

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Solution

The fourth proportional to 13,035.61, 17,988.70 and 7,727.27 is: 10,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.61 : 17,988.70 = 7,727.27 : x
  2. Step 2: Convert to fraction form
    13,035.61/17,988.70 = 7,727.27/x
  3. Step 3: Cross multiply
    13,035.61x = 17,988.70 × 7,727.27
  4. Step 4: Simplify right side
    13,035.61x = 139,003,503.21
  5. Step 5: Solve for x
    x = 139,003,503.21/13,035.61
  6. Step 6: Final answer
    x = 10,663.37

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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.