Home / 13,221.05-19,830.56-4,897.17

Finding the Fourth Proportional to 13,221.05, 19,830.56 and 4,897.17

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Solution

The fourth proportional to 13,221.05, 19,830.56 and 4,897.17 is: 7,345.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.05 : 19,830.56 = 4,897.17 : x
  2. Step 2: Convert to fraction form
    13,221.05/19,830.56 = 4,897.17/x
  3. Step 3: Cross multiply
    13,221.05x = 19,830.56 × 4,897.17
  4. Step 4: Simplify right side
    13,221.05x = 97,113,599.03
  5. Step 5: Solve for x
    x = 97,113,599.03/13,221.05
  6. Step 6: Final answer
    x = 7,345.38

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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.