Home / 10,655.07-15,987.21-5,718.94

Finding the Fourth Proportional to 10,655.07, 15,987.21 and 5,718.94

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Solution

The fourth proportional to 10,655.07, 15,987.21 and 5,718.94 is: 8,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.07 : 15,987.21 = 5,718.94 : x
  2. Step 2: Convert to fraction form
    10,655.07/15,987.21 = 5,718.94/x
  3. Step 3: Cross multiply
    10,655.07x = 15,987.21 × 5,718.94
  4. Step 4: Simplify right side
    10,655.07x = 91,429,833.34
  5. Step 5: Solve for x
    x = 91,429,833.34/10,655.07
  6. Step 6: Final answer
    x = 8,580.88

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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.