Home / 16,831.40-23,210.55-10,866.15

Finding the Fourth Proportional to 16,831.40, 23,210.55 and 10,866.15

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Solution

The fourth proportional to 16,831.40, 23,210.55 and 10,866.15 is: 14,984.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,831.40 : 23,210.55 = 10,866.15 : x
  2. Step 2: Convert to fraction form
    16,831.40/23,210.55 = 10,866.15/x
  3. Step 3: Cross multiply
    16,831.40x = 23,210.55 × 10,866.15
  4. Step 4: Simplify right side
    16,831.40x = 252,209,317.88
  5. Step 5: Solve for x
    x = 252,209,317.88/16,831.40
  6. Step 6: Final answer
    x = 14,984.46

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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.