Home / 12,302.40-18,440.40-4,903.56

Finding the Fourth Proportional to 12,302.40, 18,440.40 and 4,903.56

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Solution

The fourth proportional to 12,302.40, 18,440.40 and 4,903.56 is: 7,350.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.40 : 18,440.40 = 4,903.56 : x
  2. Step 2: Convert to fraction form
    12,302.40/18,440.40 = 4,903.56/x
  3. Step 3: Cross multiply
    12,302.40x = 18,440.40 × 4,903.56
  4. Step 4: Simplify right side
    12,302.40x = 90,423,607.82
  5. Step 5: Solve for x
    x = 90,423,607.82/12,302.40
  6. Step 6: Final answer
    x = 7,350.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.