Home / 13,152.46-18,155.43-8,117.50

Finding the Fourth Proportional to 13,152.46, 18,155.43 and 8,117.50

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Solution

The fourth proportional to 13,152.46, 18,155.43 and 8,117.50 is: 11,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.46 : 18,155.43 = 8,117.50 : x
  2. Step 2: Convert to fraction form
    13,152.46/18,155.43 = 8,117.50/x
  3. Step 3: Cross multiply
    13,152.46x = 18,155.43 × 8,117.50
  4. Step 4: Simplify right side
    13,152.46x = 147,376,703.03
  5. Step 5: Solve for x
    x = 147,376,703.03/13,152.46
  6. Step 6: Final answer
    x = 11,205.26

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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.