Home / 15,341.99-21,176.19-8,969.94

Finding the Fourth Proportional to 15,341.99, 21,176.19 and 8,969.94

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Solution

The fourth proportional to 15,341.99, 21,176.19 and 8,969.94 is: 12,381.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.99 : 21,176.19 = 8,969.94 : x
  2. Step 2: Convert to fraction form
    15,341.99/21,176.19 = 8,969.94/x
  3. Step 3: Cross multiply
    15,341.99x = 21,176.19 × 8,969.94
  4. Step 4: Simplify right side
    15,341.99x = 189,949,153.73
  5. Step 5: Solve for x
    x = 189,949,153.73/15,341.99
  6. Step 6: Final answer
    x = 12,381.00

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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.