Home / 10,140.04-13,993.28-5,663.96

Finding the Fourth Proportional to 10,140.04, 13,993.28 and 5,663.96

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Solution

The fourth proportional to 10,140.04, 13,993.28 and 5,663.96 is: 7,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.04 : 13,993.28 = 5,663.96 : x
  2. Step 2: Convert to fraction form
    10,140.04/13,993.28 = 5,663.96/x
  3. Step 3: Cross multiply
    10,140.04x = 13,993.28 × 5,663.96
  4. Step 4: Simplify right side
    10,140.04x = 79,257,378.19
  5. Step 5: Solve for x
    x = 79,257,378.19/10,140.04
  6. Step 6: Final answer
    x = 7,816.28

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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.