Home / 15,655.10-21,604.92-9,285.46

Finding the Fourth Proportional to 15,655.10, 21,604.92 and 9,285.46

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Solution

The fourth proportional to 15,655.10, 21,604.92 and 9,285.46 is: 12,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.10 : 21,604.92 = 9,285.46 : x
  2. Step 2: Convert to fraction form
    15,655.10/21,604.92 = 9,285.46/x
  3. Step 3: Cross multiply
    15,655.10x = 21,604.92 × 9,285.46
  4. Step 4: Simplify right side
    15,655.10x = 200,611,466.01
  5. Step 5: Solve for x
    x = 200,611,466.01/15,655.10
  6. Step 6: Final answer
    x = 12,814.45

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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.