Home / 7,485.10-10,329.38-4,127.92

Finding the Fourth Proportional to 7,485.10, 10,329.38 and 4,127.92

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Solution

The fourth proportional to 7,485.10, 10,329.38 and 4,127.92 is: 5,696.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.10 : 10,329.38 = 4,127.92 : x
  2. Step 2: Convert to fraction form
    7,485.10/10,329.38 = 4,127.92/x
  3. Step 3: Cross multiply
    7,485.10x = 10,329.38 × 4,127.92
  4. Step 4: Simplify right side
    7,485.10x = 42,638,854.29
  5. Step 5: Solve for x
    x = 42,638,854.29/7,485.10
  6. Step 6: Final answer
    x = 5,696.50

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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.