Home / 7,485.03-10,328.56-4,127.72

Finding the Fourth Proportional to 7,485.03, 10,328.56 and 4,127.72

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Solution

The fourth proportional to 7,485.03, 10,328.56 and 4,127.72 is: 5,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.03 : 10,328.56 = 4,127.72 : x
  2. Step 2: Convert to fraction form
    7,485.03/10,328.56 = 4,127.72/x
  3. Step 3: Cross multiply
    7,485.03x = 10,328.56 × 4,127.72
  4. Step 4: Simplify right side
    7,485.03x = 42,633,341.72
  5. Step 5: Solve for x
    x = 42,633,341.72/7,485.03
  6. Step 6: Final answer
    x = 5,695.81

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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.