Home / 15,266.90-21,069.11-9,297.61

Finding the Fourth Proportional to 15,266.90, 21,069.11 and 9,297.61

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Solution

The fourth proportional to 15,266.90, 21,069.11 and 9,297.61 is: 12,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.90 : 21,069.11 = 9,297.61 : x
  2. Step 2: Convert to fraction form
    15,266.90/21,069.11 = 9,297.61/x
  3. Step 3: Cross multiply
    15,266.90x = 21,069.11 × 9,297.61
  4. Step 4: Simplify right side
    15,266.90x = 195,892,338.40
  5. Step 5: Solve for x
    x = 195,892,338.40/15,266.90
  6. Step 6: Final answer
    x = 12,831.18

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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.