Home / 19,390.58-29,088.60-7,542.05

Finding the Fourth Proportional to 19,390.58, 29,088.60 and 7,542.05

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Solution

The fourth proportional to 19,390.58, 29,088.60 and 7,542.05 is: 11,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.58 : 29,088.60 = 7,542.05 : x
  2. Step 2: Convert to fraction form
    19,390.58/29,088.60 = 7,542.05/x
  3. Step 3: Cross multiply
    19,390.58x = 29,088.60 × 7,542.05
  4. Step 4: Simplify right side
    19,390.58x = 219,387,675.63
  5. Step 5: Solve for x
    x = 219,387,675.63/19,390.58
  6. Step 6: Final answer
    x = 11,314.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.