Home / 13,655.47-20,483.26-4,770.76

Finding the Fourth Proportional to 13,655.47, 20,483.26 and 4,770.76

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Solution

The fourth proportional to 13,655.47, 20,483.26 and 4,770.76 is: 7,156.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.47 : 20,483.26 = 4,770.76 : x
  2. Step 2: Convert to fraction form
    13,655.47/20,483.26 = 4,770.76/x
  3. Step 3: Cross multiply
    13,655.47x = 20,483.26 × 4,770.76
  4. Step 4: Simplify right side
    13,655.47x = 97,720,664.86
  5. Step 5: Solve for x
    x = 97,720,664.86/13,655.47
  6. Step 6: Final answer
    x = 7,156.16

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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.