Home / 13,646.09-18,831.56-7,677.75

Finding the Fourth Proportional to 13,646.09, 18,831.56 and 7,677.75

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Solution

The fourth proportional to 13,646.09, 18,831.56 and 7,677.75 is: 10,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.09 : 18,831.56 = 7,677.75 : x
  2. Step 2: Convert to fraction form
    13,646.09/18,831.56 = 7,677.75/x
  3. Step 3: Cross multiply
    13,646.09x = 18,831.56 × 7,677.75
  4. Step 4: Simplify right side
    13,646.09x = 144,583,971.40
  5. Step 5: Solve for x
    x = 144,583,971.40/13,646.09
  6. Step 6: Final answer
    x = 10,595.27

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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.