Home / 18,637.79-25,720.20-10,254.29

Finding the Fourth Proportional to 18,637.79, 25,720.20 and 10,254.29

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Solution

The fourth proportional to 18,637.79, 25,720.20 and 10,254.29 is: 14,150.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.79 : 25,720.20 = 10,254.29 : x
  2. Step 2: Convert to fraction form
    18,637.79/25,720.20 = 10,254.29/x
  3. Step 3: Cross multiply
    18,637.79x = 25,720.20 × 10,254.29
  4. Step 4: Simplify right side
    18,637.79x = 263,742,389.66
  5. Step 5: Solve for x
    x = 263,742,389.66/18,637.79
  6. Step 6: Final answer
    x = 14,150.95

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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.