Home / 10,538.64-14,543.28-6,290.46

Finding the Fourth Proportional to 10,538.64, 14,543.28 and 6,290.46

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Solution

The fourth proportional to 10,538.64, 14,543.28 and 6,290.46 is: 8,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.64 : 14,543.28 = 6,290.46 : x
  2. Step 2: Convert to fraction form
    10,538.64/14,543.28 = 6,290.46/x
  3. Step 3: Cross multiply
    10,538.64x = 14,543.28 × 6,290.46
  4. Step 4: Simplify right side
    10,538.64x = 91,483,921.11
  5. Step 5: Solve for x
    x = 91,483,921.11/10,538.64
  6. Step 6: Final answer
    x = 8,680.81

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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.