Home / 19,865.34-27,414.63-10,913.40

Finding the Fourth Proportional to 19,865.34, 27,414.63 and 10,913.40

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Solution

The fourth proportional to 19,865.34, 27,414.63 and 10,913.40 is: 15,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.34 : 27,414.63 = 10,913.40 : x
  2. Step 2: Convert to fraction form
    19,865.34/27,414.63 = 10,913.40/x
  3. Step 3: Cross multiply
    19,865.34x = 27,414.63 × 10,913.40
  4. Step 4: Simplify right side
    19,865.34x = 299,186,823.04
  5. Step 5: Solve for x
    x = 299,186,823.04/19,865.34
  6. Step 6: Final answer
    x = 15,060.75

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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.