Home / 13,277.11-18,320.26-7,610.81

Finding the Fourth Proportional to 13,277.11, 18,320.26 and 7,610.81

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Solution

The fourth proportional to 13,277.11, 18,320.26 and 7,610.81 is: 10,501.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.11 : 18,320.26 = 7,610.81 : x
  2. Step 2: Convert to fraction form
    13,277.11/18,320.26 = 7,610.81/x
  3. Step 3: Cross multiply
    13,277.11x = 18,320.26 × 7,610.81
  4. Step 4: Simplify right side
    13,277.11x = 139,432,018.01
  5. Step 5: Solve for x
    x = 139,432,018.01/13,277.11
  6. Step 6: Final answer
    x = 10,501.69

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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.