Home / 8,746.48-13,118.91-5,415.22

Finding the Fourth Proportional to 8,746.48, 13,118.91 and 5,415.22

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Solution

The fourth proportional to 8,746.48, 13,118.91 and 5,415.22 is: 8,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.48 : 13,118.91 = 5,415.22 : x
  2. Step 2: Convert to fraction form
    8,746.48/13,118.91 = 5,415.22/x
  3. Step 3: Cross multiply
    8,746.48x = 13,118.91 × 5,415.22
  4. Step 4: Simplify right side
    8,746.48x = 71,041,783.81
  5. Step 5: Solve for x
    x = 71,041,783.81/8,746.48
  6. Step 6: Final answer
    x = 8,122.33

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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.