Home / 15,604.98-21,535.04-8,890.59

Finding the Fourth Proportional to 15,604.98, 21,535.04 and 8,890.59

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Solution

The fourth proportional to 15,604.98, 21,535.04 and 8,890.59 is: 12,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.98 : 21,535.04 = 8,890.59 : x
  2. Step 2: Convert to fraction form
    15,604.98/21,535.04 = 8,890.59/x
  3. Step 3: Cross multiply
    15,604.98x = 21,535.04 × 8,890.59
  4. Step 4: Simplify right side
    15,604.98x = 191,459,166.82
  5. Step 5: Solve for x
    x = 191,459,166.82/15,604.98
  6. Step 6: Final answer
    x = 12,269.11

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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.