Home / 16,816.28-25,228.16-5,130.40

Finding the Fourth Proportional to 16,816.28, 25,228.16 and 5,130.40

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Solution

The fourth proportional to 16,816.28, 25,228.16 and 5,130.40 is: 7,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,816.28 : 25,228.16 = 5,130.40 : x
  2. Step 2: Convert to fraction form
    16,816.28/25,228.16 = 5,130.40/x
  3. Step 3: Cross multiply
    16,816.28x = 25,228.16 × 5,130.40
  4. Step 4: Simplify right side
    16,816.28x = 129,430,552.06
  5. Step 5: Solve for x
    x = 129,430,552.06/16,816.28
  6. Step 6: Final answer
    x = 7,696.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.