Home / 13,870.32-20,802.40-4,007.44

Finding the Fourth Proportional to 13,870.32, 20,802.40 and 4,007.44

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Solution

The fourth proportional to 13,870.32, 20,802.40 and 4,007.44 is: 6,010.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,870.32 : 20,802.40 = 4,007.44 : x
  2. Step 2: Convert to fraction form
    13,870.32/20,802.40 = 4,007.44/x
  3. Step 3: Cross multiply
    13,870.32x = 20,802.40 × 4,007.44
  4. Step 4: Simplify right side
    13,870.32x = 83,364,369.86
  5. Step 5: Solve for x
    x = 83,364,369.86/13,870.32
  6. Step 6: Final answer
    x = 6,010.27

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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.