Home / 13,239.48-19,859.76-4,005.48

Finding the Fourth Proportional to 13,239.48, 19,859.76 and 4,005.48

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Solution

The fourth proportional to 13,239.48, 19,859.76 and 4,005.48 is: 6,008.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.48 : 19,859.76 = 4,005.48 : x
  2. Step 2: Convert to fraction form
    13,239.48/19,859.76 = 4,005.48/x
  3. Step 3: Cross multiply
    13,239.48x = 19,859.76 × 4,005.48
  4. Step 4: Simplify right side
    13,239.48x = 79,547,871.48
  5. Step 5: Solve for x
    x = 79,547,871.48/13,239.48
  6. Step 6: Final answer
    x = 6,008.38

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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.