Home / 13,148.36-19,730.76-7,309.04

Finding the Fourth Proportional to 13,148.36, 19,730.76 and 7,309.04

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Solution

The fourth proportional to 13,148.36, 19,730.76 and 7,309.04 is: 10,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.36 : 19,730.76 = 7,309.04 : x
  2. Step 2: Convert to fraction form
    13,148.36/19,730.76 = 7,309.04/x
  3. Step 3: Cross multiply
    13,148.36x = 19,730.76 × 7,309.04
  4. Step 4: Simplify right side
    13,148.36x = 144,212,914.07
  5. Step 5: Solve for x
    x = 144,212,914.07/13,148.36
  6. Step 6: Final answer
    x = 10,968.13

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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.