Home / 12,666.69-19,001.57-5,276.16

Finding the Fourth Proportional to 12,666.69, 19,001.57 and 5,276.16

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Solution

The fourth proportional to 12,666.69, 19,001.57 and 5,276.16 is: 7,914.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.69 : 19,001.57 = 5,276.16 : x
  2. Step 2: Convert to fraction form
    12,666.69/19,001.57 = 5,276.16/x
  3. Step 3: Cross multiply
    12,666.69x = 19,001.57 × 5,276.16
  4. Step 4: Simplify right side
    12,666.69x = 100,255,297.19
  5. Step 5: Solve for x
    x = 100,255,297.19/12,666.69
  6. Step 6: Final answer
    x = 7,914.88

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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.