Home / 13,235.04-18,263.01-7,929.72

Finding the Fourth Proportional to 13,235.04, 18,263.01 and 7,929.72

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Solution

The fourth proportional to 13,235.04, 18,263.01 and 7,929.72 is: 10,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.04 : 18,263.01 = 7,929.72 : x
  2. Step 2: Convert to fraction form
    13,235.04/18,263.01 = 7,929.72/x
  3. Step 3: Cross multiply
    13,235.04x = 18,263.01 × 7,929.72
  4. Step 4: Simplify right side
    13,235.04x = 144,820,555.66
  5. Step 5: Solve for x
    x = 144,820,555.66/13,235.04
  6. Step 6: Final answer
    x = 10,942.21

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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.