Home / 16,678.50-23,019.12-9,603.60

Finding the Fourth Proportional to 16,678.50, 23,019.12 and 9,603.60

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Solution

The fourth proportional to 16,678.50, 23,019.12 and 9,603.60 is: 13,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.50 : 23,019.12 = 9,603.60 : x
  2. Step 2: Convert to fraction form
    16,678.50/23,019.12 = 9,603.60/x
  3. Step 3: Cross multiply
    16,678.50x = 23,019.12 × 9,603.60
  4. Step 4: Simplify right side
    16,678.50x = 221,066,420.83
  5. Step 5: Solve for x
    x = 221,066,420.83/16,678.50
  6. Step 6: Final answer
    x = 13,254.57

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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.