Home / 13,192.89-18,206.73-7,225.08

Finding the Fourth Proportional to 13,192.89, 18,206.73 and 7,225.08

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Solution

The fourth proportional to 13,192.89, 18,206.73 and 7,225.08 is: 9,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192.89 : 18,206.73 = 7,225.08 : x
  2. Step 2: Convert to fraction form
    13,192.89/18,206.73 = 7,225.08/x
  3. Step 3: Cross multiply
    13,192.89x = 18,206.73 × 7,225.08
  4. Step 4: Simplify right side
    13,192.89x = 131,545,080.79
  5. Step 5: Solve for x
    x = 131,545,080.79/13,192.89
  6. Step 6: Final answer
    x = 9,970.91

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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.