Home / 16,680.32-25,017.60-4,990.40

Finding the Fourth Proportional to 16,680.32, 25,017.60 and 4,990.40

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Solution

The fourth proportional to 16,680.32, 25,017.60 and 4,990.40 is: 7,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,680.32 : 25,017.60 = 4,990.40 : x
  2. Step 2: Convert to fraction form
    16,680.32/25,017.60 = 4,990.40/x
  3. Step 3: Cross multiply
    16,680.32x = 25,017.60 × 4,990.40
  4. Step 4: Simplify right side
    16,680.32x = 124,847,831.04
  5. Step 5: Solve for x
    x = 124,847,831.04/16,680.32
  6. Step 6: Final answer
    x = 7,484.74

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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.