Home / 13,172.36-18,177.86-7,204.01

Finding the Fourth Proportional to 13,172.36, 18,177.86 and 7,204.01

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Solution

The fourth proportional to 13,172.36, 18,177.86 and 7,204.01 is: 9,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.36 : 18,177.86 = 7,204.01 : x
  2. Step 2: Convert to fraction form
    13,172.36/18,177.86 = 7,204.01/x
  3. Step 3: Cross multiply
    13,172.36x = 18,177.86 × 7,204.01
  4. Step 4: Simplify right side
    13,172.36x = 130,953,412.34
  5. Step 5: Solve for x
    x = 130,953,412.34/13,172.36
  6. Step 6: Final answer
    x = 9,941.53

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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.