Home / 13,638.84-18,831.06-10,502.52

Finding the Fourth Proportional to 13,638.84, 18,831.06 and 10,502.52

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Solution

The fourth proportional to 13,638.84, 18,831.06 and 10,502.52 is: 14,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,638.84 : 18,831.06 = 10,502.52 : x
  2. Step 2: Convert to fraction form
    13,638.84/18,831.06 = 10,502.52/x
  3. Step 3: Cross multiply
    13,638.84x = 18,831.06 × 10,502.52
  4. Step 4: Simplify right side
    13,638.84x = 197,773,584.27
  5. Step 5: Solve for x
    x = 197,773,584.27/13,638.84
  6. Step 6: Final answer
    x = 14,500.76

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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.