Home / 15,114.27-20,858.40-8,400.01

Finding the Fourth Proportional to 15,114.27, 20,858.40 and 8,400.01

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Solution

The fourth proportional to 15,114.27, 20,858.40 and 8,400.01 is: 11,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.27 : 20,858.40 = 8,400.01 : x
  2. Step 2: Convert to fraction form
    15,114.27/20,858.40 = 8,400.01/x
  3. Step 3: Cross multiply
    15,114.27x = 20,858.40 × 8,400.01
  4. Step 4: Simplify right side
    15,114.27x = 175,210,826.16
  5. Step 5: Solve for x
    x = 175,210,826.16/15,114.27
  6. Step 6: Final answer
    x = 11,592.41

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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.