Home / 18,989.40-26,205.09-10,492.14

Finding the Fourth Proportional to 18,989.40, 26,205.09 and 10,492.14

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Solution

The fourth proportional to 18,989.40, 26,205.09 and 10,492.14 is: 14,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.40 : 26,205.09 = 10,492.14 : x
  2. Step 2: Convert to fraction form
    18,989.40/26,205.09 = 10,492.14/x
  3. Step 3: Cross multiply
    18,989.40x = 26,205.09 × 10,492.14
  4. Step 4: Simplify right side
    18,989.40x = 274,947,472.99
  5. Step 5: Solve for x
    x = 274,947,472.99/18,989.40
  6. Step 6: Final answer
    x = 14,479.00

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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.