Home / 7,485.51-10,334.45-6,655.20

Finding the Fourth Proportional to 7,485.51, 10,334.45 and 6,655.20

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Solution

The fourth proportional to 7,485.51, 10,334.45 and 6,655.20 is: 9,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.51 : 10,334.45 = 6,655.20 : x
  2. Step 2: Convert to fraction form
    7,485.51/10,334.45 = 6,655.20/x
  3. Step 3: Cross multiply
    7,485.51x = 10,334.45 × 6,655.20
  4. Step 4: Simplify right side
    7,485.51x = 68,777,798.36
  5. Step 5: Solve for x
    x = 68,777,798.36/7,485.51
  6. Step 6: Final answer
    x = 9,188.12

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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.