Home / 13,162.62-18,152.40-10,291.74

Finding the Fourth Proportional to 13,162.62, 18,152.40 and 10,291.74

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Solution

The fourth proportional to 13,162.62, 18,152.40 and 10,291.74 is: 14,193.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.62 : 18,152.40 = 10,291.74 : x
  2. Step 2: Convert to fraction form
    13,162.62/18,152.40 = 10,291.74/x
  3. Step 3: Cross multiply
    13,162.62x = 18,152.40 × 10,291.74
  4. Step 4: Simplify right side
    13,162.62x = 186,819,781.18
  5. Step 5: Solve for x
    x = 186,819,781.18/13,162.62
  6. Step 6: Final answer
    x = 14,193.21

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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.