Home / 12,279.02-18,423.08-7,352.11

Finding the Fourth Proportional to 12,279.02, 18,423.08 and 7,352.11

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Solution

The fourth proportional to 12,279.02, 18,423.08 and 7,352.11 is: 11,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.02 : 18,423.08 = 7,352.11 : x
  2. Step 2: Convert to fraction form
    12,279.02/18,423.08 = 7,352.11/x
  3. Step 3: Cross multiply
    12,279.02x = 18,423.08 × 7,352.11
  4. Step 4: Simplify right side
    12,279.02x = 135,448,510.70
  5. Step 5: Solve for x
    x = 135,448,510.70/12,279.02
  6. Step 6: Final answer
    x = 11,030.89

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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.