Home / 15,267.69-23,005.53-12,555.12

Finding the Fourth Proportional to 15,267.69, 23,005.53 and 12,555.12

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Solution

The fourth proportional to 15,267.69, 23,005.53 and 12,555.12 is: 18,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.69 : 23,005.53 = 12,555.12 : x
  2. Step 2: Convert to fraction form
    15,267.69/23,005.53 = 12,555.12/x
  3. Step 3: Cross multiply
    15,267.69x = 23,005.53 × 12,555.12
  4. Step 4: Simplify right side
    15,267.69x = 288,837,189.81
  5. Step 5: Solve for x
    x = 288,837,189.81/15,267.69
  6. Step 6: Final answer
    x = 18,918.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.