Home / 18,521.79-25,560.36-10,455.87

Finding the Fourth Proportional to 18,521.79, 25,560.36 and 10,455.87

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Solution

The fourth proportional to 18,521.79, 25,560.36 and 10,455.87 is: 14,429.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.79 : 25,560.36 = 10,455.87 : x
  2. Step 2: Convert to fraction form
    18,521.79/25,560.36 = 10,455.87/x
  3. Step 3: Cross multiply
    18,521.79x = 25,560.36 × 10,455.87
  4. Step 4: Simplify right side
    18,521.79x = 267,255,801.31
  5. Step 5: Solve for x
    x = 267,255,801.31/18,521.79
  6. Step 6: Final answer
    x = 14,429.26

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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.