Home / 8,557.08-12,831.02-4,395.40

Finding the Fourth Proportional to 8,557.08, 12,831.02 and 4,395.40

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Solution

The fourth proportional to 8,557.08, 12,831.02 and 4,395.40 is: 6,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.08 : 12,831.02 = 4,395.40 : x
  2. Step 2: Convert to fraction form
    8,557.08/12,831.02 = 4,395.40/x
  3. Step 3: Cross multiply
    8,557.08x = 12,831.02 × 4,395.40
  4. Step 4: Simplify right side
    8,557.08x = 56,397,465.31
  5. Step 5: Solve for x
    x = 56,397,465.31/8,557.08
  6. Step 6: Final answer
    x = 6,590.74

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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.