Home / 19,100.32-26,349.76-12,387.64

Finding the Fourth Proportional to 19,100.32, 26,349.76 and 12,387.64

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Solution

The fourth proportional to 19,100.32, 26,349.76 and 12,387.64 is: 17,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.32 : 26,349.76 = 12,387.64 : x
  2. Step 2: Convert to fraction form
    19,100.32/26,349.76 = 12,387.64/x
  3. Step 3: Cross multiply
    19,100.32x = 26,349.76 × 12,387.64
  4. Step 4: Simplify right side
    19,100.32x = 326,411,340.97
  5. Step 5: Solve for x
    x = 326,411,340.97/19,100.32
  6. Step 6: Final answer
    x = 17,089.31

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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.