Home / 15,654.69-21,603.53-8,484.62

Finding the Fourth Proportional to 15,654.69, 21,603.53 and 8,484.62

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Solution

The fourth proportional to 15,654.69, 21,603.53 and 8,484.62 is: 11,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.69 : 21,603.53 = 8,484.62 : x
  2. Step 2: Convert to fraction form
    15,654.69/21,603.53 = 8,484.62/x
  3. Step 3: Cross multiply
    15,654.69x = 21,603.53 × 8,484.62
  4. Step 4: Simplify right side
    15,654.69x = 183,297,655.90
  5. Step 5: Solve for x
    x = 183,297,655.90/15,654.69
  6. Step 6: Final answer
    x = 11,708.80

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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.