Home / 10,133.12-13,981.68-5,656.16

Finding the Fourth Proportional to 10,133.12, 13,981.68 and 5,656.16

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Solution

The fourth proportional to 10,133.12, 13,981.68 and 5,656.16 is: 7,804.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.12 : 13,981.68 = 5,656.16 : x
  2. Step 2: Convert to fraction form
    10,133.12/13,981.68 = 5,656.16/x
  3. Step 3: Cross multiply
    10,133.12x = 13,981.68 × 5,656.16
  4. Step 4: Simplify right side
    10,133.12x = 79,082,654.10
  5. Step 5: Solve for x
    x = 79,082,654.10/10,133.12
  6. Step 6: Final answer
    x = 7,804.37

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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.