Home / 18,488.78-25,508.28-10,525.36

Finding the Fourth Proportional to 18,488.78, 25,508.28 and 10,525.36

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Solution

The fourth proportional to 18,488.78, 25,508.28 and 10,525.36 is: 14,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.78 : 25,508.28 = 10,525.36 : x
  2. Step 2: Convert to fraction form
    18,488.78/25,508.28 = 10,525.36/x
  3. Step 3: Cross multiply
    18,488.78x = 25,508.28 × 10,525.36
  4. Step 4: Simplify right side
    18,488.78x = 268,483,829.98
  5. Step 5: Solve for x
    x = 268,483,829.98/18,488.78
  6. Step 6: Final answer
    x = 14,521.45

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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.