Home / 19,830.64-27,367.05-10,878.46

Finding the Fourth Proportional to 19,830.64, 27,367.05 and 10,878.46

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Solution

The fourth proportional to 19,830.64, 27,367.05 and 10,878.46 is: 15,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.64 : 27,367.05 = 10,878.46 : x
  2. Step 2: Convert to fraction form
    19,830.64/27,367.05 = 10,878.46/x
  3. Step 3: Cross multiply
    19,830.64x = 27,367.05 × 10,878.46
  4. Step 4: Simplify right side
    19,830.64x = 297,711,358.74
  5. Step 5: Solve for x
    x = 297,711,358.74/19,830.64
  6. Step 6: Final answer
    x = 15,012.70

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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.