Home / 13,655.39-18,846.24-7,688.23

Finding the Fourth Proportional to 13,655.39, 18,846.24 and 7,688.23

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Solution

The fourth proportional to 13,655.39, 18,846.24 and 7,688.23 is: 10,610.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.39 : 18,846.24 = 7,688.23 : x
  2. Step 2: Convert to fraction form
    13,655.39/18,846.24 = 7,688.23/x
  3. Step 3: Cross multiply
    13,655.39x = 18,846.24 × 7,688.23
  4. Step 4: Simplify right side
    13,655.39x = 144,894,095.08
  5. Step 5: Solve for x
    x = 144,894,095.08/13,655.39
  6. Step 6: Final answer
    x = 10,610.76

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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.