Home / 10,320.57-14,242.68-5,605.16

Finding the Fourth Proportional to 10,320.57, 14,242.68 and 5,605.16

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Solution

The fourth proportional to 10,320.57, 14,242.68 and 5,605.16 is: 7,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.57 : 14,242.68 = 5,605.16 : x
  2. Step 2: Convert to fraction form
    10,320.57/14,242.68 = 5,605.16/x
  3. Step 3: Cross multiply
    10,320.57x = 14,242.68 × 5,605.16
  4. Step 4: Simplify right side
    10,320.57x = 79,832,429.02
  5. Step 5: Solve for x
    x = 79,832,429.02/10,320.57
  6. Step 6: Final answer
    x = 7,735.27

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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.