Home / 17,108.51-25,663.49-5,421.47

Finding the Fourth Proportional to 17,108.51, 25,663.49 and 5,421.47

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Solution

The fourth proportional to 17,108.51, 25,663.49 and 5,421.47 is: 8,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,108.51 : 25,663.49 = 5,421.47 : x
  2. Step 2: Convert to fraction form
    17,108.51/25,663.49 = 5,421.47/x
  3. Step 3: Cross multiply
    17,108.51x = 25,663.49 × 5,421.47
  4. Step 4: Simplify right side
    17,108.51x = 139,133,685.71
  5. Step 5: Solve for x
    x = 139,133,685.71/17,108.51
  6. Step 6: Final answer
    x = 8,132.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.