Home / 14,160.08-19,539.20-7,785.62

Finding the Fourth Proportional to 14,160.08, 19,539.20 and 7,785.62

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Solution

The fourth proportional to 14,160.08, 19,539.20 and 7,785.62 is: 10,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.08 : 19,539.20 = 7,785.62 : x
  2. Step 2: Convert to fraction form
    14,160.08/19,539.20 = 7,785.62/x
  3. Step 3: Cross multiply
    14,160.08x = 19,539.20 × 7,785.62
  4. Step 4: Simplify right side
    14,160.08x = 152,124,649.68
  5. Step 5: Solve for x
    x = 152,124,649.68/14,160.08
  6. Step 6: Final answer
    x = 10,743.21

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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.