Home / 18,389.60-25,378.16-10,006.24

Finding the Fourth Proportional to 18,389.60, 25,378.16 and 10,006.24

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Solution

The fourth proportional to 18,389.60, 25,378.16 and 10,006.24 is: 13,808.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.60 : 25,378.16 = 10,006.24 : x
  2. Step 2: Convert to fraction form
    18,389.60/25,378.16 = 10,006.24/x
  3. Step 3: Cross multiply
    18,389.60x = 25,378.16 × 10,006.24
  4. Step 4: Simplify right side
    18,389.60x = 253,939,959.72
  5. Step 5: Solve for x
    x = 253,939,959.72/18,389.60
  6. Step 6: Final answer
    x = 13,808.89

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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.