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Finding the Fourth Proportional to 15,095, 20,831.10 and 8,807.42

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Solution

The fourth proportional to 15,095, 20,831.10 and 8,807.42 is: 12,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,095 : 20,831.10 = 8,807.42 : x
  2. Step 2: Convert to fraction form
    15,095/20,831.10 = 8,807.42/x
  3. Step 3: Cross multiply
    15,095x = 20,831.10 × 8,807.42
  4. Step 4: Simplify right side
    15,095x = 183,468,246.76
  5. Step 5: Solve for x
    x = 183,468,246.76/15,095
  6. Step 6: Final answer
    x = 12,154.24

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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.