Home / 15,777.31-23,659.47-5,911.51

Finding the Fourth Proportional to 15,777.31, 23,659.47 and 5,911.51

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Solution

The fourth proportional to 15,777.31, 23,659.47 and 5,911.51 is: 8,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,777.31 : 23,659.47 = 5,911.51 : x
  2. Step 2: Convert to fraction form
    15,777.31/23,659.47 = 5,911.51/x
  3. Step 3: Cross multiply
    15,777.31x = 23,659.47 × 5,911.51
  4. Step 4: Simplify right side
    15,777.31x = 139,863,193.50
  5. Step 5: Solve for x
    x = 139,863,193.50/15,777.31
  6. Step 6: Final answer
    x = 8,864.83

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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.