Home / 14,645.39-20,210.66-7,931.03

Finding the Fourth Proportional to 14,645.39, 20,210.66 and 7,931.03

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Solution

The fourth proportional to 14,645.39, 20,210.66 and 7,931.03 is: 10,944.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.39 : 20,210.66 = 7,931.03 : x
  2. Step 2: Convert to fraction form
    14,645.39/20,210.66 = 7,931.03/x
  3. Step 3: Cross multiply
    14,645.39x = 20,210.66 × 7,931.03
  4. Step 4: Simplify right side
    14,645.39x = 160,291,440.74
  5. Step 5: Solve for x
    x = 160,291,440.74/14,645.39
  6. Step 6: Final answer
    x = 10,944.84

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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.