Home / 13,300.65-19,866.75-10,348.20

Finding the Fourth Proportional to 13,300.65, 19,866.75 and 10,348.20

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Solution

The fourth proportional to 13,300.65, 19,866.75 and 10,348.20 is: 15,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.65 : 19,866.75 = 10,348.20 : x
  2. Step 2: Convert to fraction form
    13,300.65/19,866.75 = 10,348.20/x
  3. Step 3: Cross multiply
    13,300.65x = 19,866.75 × 10,348.20
  4. Step 4: Simplify right side
    13,300.65x = 205,585,102.35
  5. Step 5: Solve for x
    x = 205,585,102.35/13,300.65
  6. Step 6: Final answer
    x = 15,456.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.