Home / 14,208.29-19,608.77-7,920.53

Finding the Fourth Proportional to 14,208.29, 19,608.77 and 7,920.53

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Solution

The fourth proportional to 14,208.29, 19,608.77 and 7,920.53 is: 10,931.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.29 : 19,608.77 = 7,920.53 : x
  2. Step 2: Convert to fraction form
    14,208.29/19,608.77 = 7,920.53/x
  3. Step 3: Cross multiply
    14,208.29x = 19,608.77 × 7,920.53
  4. Step 4: Simplify right side
    14,208.29x = 155,311,811.45
  5. Step 5: Solve for x
    x = 155,311,811.45/14,208.29
  6. Step 6: Final answer
    x = 10,931.07

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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.