Home / 9,405.24-12,960.30-7,030.20

Finding the Fourth Proportional to 9,405.24, 12,960.30 and 7,030.20

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Solution

The fourth proportional to 9,405.24, 12,960.30 and 7,030.20 is: 9,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405.24 : 12,960.30 = 7,030.20 : x
  2. Step 2: Convert to fraction form
    9,405.24/12,960.30 = 7,030.20/x
  3. Step 3: Cross multiply
    9,405.24x = 12,960.30 × 7,030.20
  4. Step 4: Simplify right side
    9,405.24x = 91,113,501.06
  5. Step 5: Solve for x
    x = 91,113,501.06/9,405.24
  6. Step 6: Final answer
    x = 9,687.53

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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.