Home / 10,718.40-14,791.32-6,243.12

Finding the Fourth Proportional to 10,718.40, 14,791.32 and 6,243.12

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Solution

The fourth proportional to 10,718.40, 14,791.32 and 6,243.12 is: 8,615.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,718.40 : 14,791.32 = 6,243.12 : x
  2. Step 2: Convert to fraction form
    10,718.40/14,791.32 = 6,243.12/x
  3. Step 3: Cross multiply
    10,718.40x = 14,791.32 × 6,243.12
  4. Step 4: Simplify right side
    10,718.40x = 92,343,985.72
  5. Step 5: Solve for x
    x = 92,343,985.72/10,718.40
  6. Step 6: Final answer
    x = 8,615.46

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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.