Home / 7,529.09-10,389.08-4,172.10

Finding the Fourth Proportional to 7,529.09, 10,389.08 and 4,172.10

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Solution

The fourth proportional to 7,529.09, 10,389.08 and 4,172.10 is: 5,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.09 : 10,389.08 = 4,172.10 : x
  2. Step 2: Convert to fraction form
    7,529.09/10,389.08 = 4,172.10/x
  3. Step 3: Cross multiply
    7,529.09x = 10,389.08 × 4,172.10
  4. Step 4: Simplify right side
    7,529.09x = 43,344,291.10
  5. Step 5: Solve for x
    x = 43,344,291.10/7,529.09
  6. Step 6: Final answer
    x = 5,756.91

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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.