Home / 13,556.06-18,707.88-7,507.07

Finding the Fourth Proportional to 13,556.06, 18,707.88 and 7,507.07

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Solution

The fourth proportional to 13,556.06, 18,707.88 and 7,507.07 is: 10,360.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.06 : 18,707.88 = 7,507.07 : x
  2. Step 2: Convert to fraction form
    13,556.06/18,707.88 = 7,507.07/x
  3. Step 3: Cross multiply
    13,556.06x = 18,707.88 × 7,507.07
  4. Step 4: Simplify right side
    13,556.06x = 140,441,364.71
  5. Step 5: Solve for x
    x = 140,441,364.71/13,556.06
  6. Step 6: Final answer
    x = 10,360.04

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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.