Home / 18,690.58-28,054.32-9,925.47

Finding the Fourth Proportional to 18,690.58, 28,054.32 and 9,925.47

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Solution

The fourth proportional to 18,690.58, 28,054.32 and 9,925.47 is: 14,898.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.58 : 28,054.32 = 9,925.47 : x
  2. Step 2: Convert to fraction form
    18,690.58/28,054.32 = 9,925.47/x
  3. Step 3: Cross multiply
    18,690.58x = 28,054.32 × 9,925.47
  4. Step 4: Simplify right side
    18,690.58x = 278,452,274.31
  5. Step 5: Solve for x
    x = 278,452,274.31/18,690.58
  6. Step 6: Final answer
    x = 14,898.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.