Home / 19,866.60-27,397.62-13,502.76

Finding the Fourth Proportional to 19,866.60, 27,397.62 and 13,502.76

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Solution

The fourth proportional to 19,866.60, 27,397.62 and 13,502.76 is: 18,621.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.60 : 27,397.62 = 13,502.76 : x
  2. Step 2: Convert to fraction form
    19,866.60/27,397.62 = 13,502.76/x
  3. Step 3: Cross multiply
    19,866.60x = 27,397.62 × 13,502.76
  4. Step 4: Simplify right side
    19,866.60x = 369,943,487.43
  5. Step 5: Solve for x
    x = 369,943,487.43/19,866.60
  6. Step 6: Final answer
    x = 18,621.38

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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.