Home / 15,655.23-21,605.58-8,583

Finding the Fourth Proportional to 15,655.23, 21,605.58 and 8,583

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Solution

The fourth proportional to 15,655.23, 21,605.58 and 8,583 is: 11,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.23 : 21,605.58 = 8,583 : x
  2. Step 2: Convert to fraction form
    15,655.23/21,605.58 = 8,583/x
  3. Step 3: Cross multiply
    15,655.23x = 21,605.58 × 8,583
  4. Step 4: Simplify right side
    15,655.23x = 185,440,693.14
  5. Step 5: Solve for x
    x = 185,440,693.14/15,655.23
  6. Step 6: Final answer
    x = 11,845.29

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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.