Home / 10,400.28-15,600.36-5,206.08

Finding the Fourth Proportional to 10,400.28, 15,600.36 and 5,206.08

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Solution

The fourth proportional to 10,400.28, 15,600.36 and 5,206.08 is: 7,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.28 : 15,600.36 = 5,206.08 : x
  2. Step 2: Convert to fraction form
    10,400.28/15,600.36 = 5,206.08/x
  3. Step 3: Cross multiply
    10,400.28x = 15,600.36 × 5,206.08
  4. Step 4: Simplify right side
    10,400.28x = 81,216,722.19
  5. Step 5: Solve for x
    x = 81,216,722.19/10,400.28
  6. Step 6: Final answer
    x = 7,809.09

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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.