Home / 12,070.31-16,665.12-7,539.87

Finding the Fourth Proportional to 12,070.31, 16,665.12 and 7,539.87

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Solution

The fourth proportional to 12,070.31, 16,665.12 and 7,539.87 is: 10,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.31 : 16,665.12 = 7,539.87 : x
  2. Step 2: Convert to fraction form
    12,070.31/16,665.12 = 7,539.87/x
  3. Step 3: Cross multiply
    12,070.31x = 16,665.12 × 7,539.87
  4. Step 4: Simplify right side
    12,070.31x = 125,652,838.33
  5. Step 5: Solve for x
    x = 125,652,838.33/12,070.31
  6. Step 6: Final answer
    x = 10,410.08

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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.