Home / 13,868.04-20,802.20-4,007.40

Finding the Fourth Proportional to 13,868.04, 20,802.20 and 4,007.40

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Solution

The fourth proportional to 13,868.04, 20,802.20 and 4,007.40 is: 6,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.04 : 20,802.20 = 4,007.40 : x
  2. Step 2: Convert to fraction form
    13,868.04/20,802.20 = 4,007.40/x
  3. Step 3: Cross multiply
    13,868.04x = 20,802.20 × 4,007.40
  4. Step 4: Simplify right side
    13,868.04x = 83,362,736.28
  5. Step 5: Solve for x
    x = 83,362,736.28/13,868.04
  6. Step 6: Final answer
    x = 6,011.14

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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.