Home / 18,880.40-26,048.72-10,916.99

Finding the Fourth Proportional to 18,880.40, 26,048.72 and 10,916.99

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Solution

The fourth proportional to 18,880.40, 26,048.72 and 10,916.99 is: 15,061.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.40 : 26,048.72 = 10,916.99 : x
  2. Step 2: Convert to fraction form
    18,880.40/26,048.72 = 10,916.99/x
  3. Step 3: Cross multiply
    18,880.40x = 26,048.72 × 10,916.99
  4. Step 4: Simplify right side
    18,880.40x = 284,373,610.48
  5. Step 5: Solve for x
    x = 284,373,610.48/18,880.40
  6. Step 6: Final answer
    x = 15,061.84

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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.