Home / 19,818.47-27,349.45-10,866.25

Finding the Fourth Proportional to 19,818.47, 27,349.45 and 10,866.25

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Solution

The fourth proportional to 19,818.47, 27,349.45 and 10,866.25 is: 14,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.47 : 27,349.45 = 10,866.25 : x
  2. Step 2: Convert to fraction form
    19,818.47/27,349.45 = 10,866.25/x
  3. Step 3: Cross multiply
    19,818.47x = 27,349.45 × 10,866.25
  4. Step 4: Simplify right side
    19,818.47x = 297,185,968.08
  5. Step 5: Solve for x
    x = 297,185,968.08/19,818.47
  6. Step 6: Final answer
    x = 14,995.40

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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.