Home / 13,235.06-18,263.02-7,929.74

Finding the Fourth Proportional to 13,235.06, 18,263.02 and 7,929.74

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Solution

The fourth proportional to 13,235.06, 18,263.02 and 7,929.74 is: 10,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.06 : 18,263.02 = 7,929.74 : x
  2. Step 2: Convert to fraction form
    13,235.06/18,263.02 = 7,929.74/x
  3. Step 3: Cross multiply
    13,235.06x = 18,263.02 × 7,929.74
  4. Step 4: Simplify right side
    13,235.06x = 144,821,000.21
  5. Step 5: Solve for x
    x = 144,821,000.21/13,235.06
  6. Step 6: Final answer
    x = 10,942.22

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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.