Home / 13,655.17-20,484.91-4,889.89

Finding the Fourth Proportional to 13,655.17, 20,484.91 and 4,889.89

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Solution

The fourth proportional to 13,655.17, 20,484.91 and 4,889.89 is: 7,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.17 : 20,484.91 = 4,889.89 : x
  2. Step 2: Convert to fraction form
    13,655.17/20,484.91 = 4,889.89/x
  3. Step 3: Cross multiply
    13,655.17x = 20,484.91 × 4,889.89
  4. Step 4: Simplify right side
    13,655.17x = 100,168,854.14
  5. Step 5: Solve for x
    x = 100,168,854.14/13,655.17
  6. Step 6: Final answer
    x = 7,335.60

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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.