Home / 18,539.08-25,582.98-10,155.40

Finding the Fourth Proportional to 18,539.08, 25,582.98 and 10,155.40

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Solution

The fourth proportional to 18,539.08, 25,582.98 and 10,155.40 is: 14,013.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.08 : 25,582.98 = 10,155.40 : x
  2. Step 2: Convert to fraction form
    18,539.08/25,582.98 = 10,155.40/x
  3. Step 3: Cross multiply
    18,539.08x = 25,582.98 × 10,155.40
  4. Step 4: Simplify right side
    18,539.08x = 259,805,395.09
  5. Step 5: Solve for x
    x = 259,805,395.09/18,539.08
  6. Step 6: Final answer
    x = 14,013.93

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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.