Home / 16,985.05-23,442.14-9,911.45

Finding the Fourth Proportional to 16,985.05, 23,442.14 and 9,911.45

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Solution

The fourth proportional to 16,985.05, 23,442.14 and 9,911.45 is: 13,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.05 : 23,442.14 = 9,911.45 : x
  2. Step 2: Convert to fraction form
    16,985.05/23,442.14 = 9,911.45/x
  3. Step 3: Cross multiply
    16,985.05x = 23,442.14 × 9,911.45
  4. Step 4: Simplify right side
    16,985.05x = 232,345,681.89
  5. Step 5: Solve for x
    x = 232,345,681.89/16,985.05
  6. Step 6: Final answer
    x = 13,679.42

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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.