Home / 12,110.90-18,166.35-10,210.10

Finding the Fourth Proportional to 12,110.90, 18,166.35 and 10,210.10

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Solution

The fourth proportional to 12,110.90, 18,166.35 and 10,210.10 is: 15,315.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.90 : 18,166.35 = 10,210.10 : x
  2. Step 2: Convert to fraction form
    12,110.90/18,166.35 = 10,210.10/x
  3. Step 3: Cross multiply
    12,110.90x = 18,166.35 × 10,210.10
  4. Step 4: Simplify right side
    12,110.90x = 185,480,250.14
  5. Step 5: Solve for x
    x = 185,480,250.14/12,110.90
  6. Step 6: Final answer
    x = 15,315.15

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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.