Home / 15,299.04-21,113.10-9,329.34

Finding the Fourth Proportional to 15,299.04, 21,113.10 and 9,329.34

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Solution

The fourth proportional to 15,299.04, 21,113.10 and 9,329.34 is: 12,874.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.04 : 21,113.10 = 9,329.34 : x
  2. Step 2: Convert to fraction form
    15,299.04/21,113.10 = 9,329.34/x
  3. Step 3: Cross multiply
    15,299.04x = 21,113.10 × 9,329.34
  4. Step 4: Simplify right side
    15,299.04x = 196,971,288.35
  5. Step 5: Solve for x
    x = 196,971,288.35/15,299.04
  6. Step 6: Final answer
    x = 12,874.75

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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.