Home / 18,303.27-25,258.59-9,919.77

Finding the Fourth Proportional to 18,303.27, 25,258.59 and 9,919.77

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Solution

The fourth proportional to 18,303.27, 25,258.59 and 9,919.77 is: 13,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.27 : 25,258.59 = 9,919.77 : x
  2. Step 2: Convert to fraction form
    18,303.27/25,258.59 = 9,919.77/x
  3. Step 3: Cross multiply
    18,303.27x = 25,258.59 × 9,919.77
  4. Step 4: Simplify right side
    18,303.27x = 250,559,403.32
  5. Step 5: Solve for x
    x = 250,559,403.32/18,303.27
  6. Step 6: Final answer
    x = 13,689.32

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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.