Home / 13,655.33-18,846.17-7,688.17

Finding the Fourth Proportional to 13,655.33, 18,846.17 and 7,688.17

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Solution

The fourth proportional to 13,655.33, 18,846.17 and 7,688.17 is: 10,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.33 : 18,846.17 = 7,688.17 : x
  2. Step 2: Convert to fraction form
    13,655.33/18,846.17 = 7,688.17/x
  3. Step 3: Cross multiply
    13,655.33x = 18,846.17 × 7,688.17
  4. Step 4: Simplify right side
    13,655.33x = 144,892,558.81
  5. Step 5: Solve for x
    x = 144,892,558.81/13,655.33
  6. Step 6: Final answer
    x = 10,610.70

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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.