Home / 13,262.61-18,283.13-9,271.35

Finding the Fourth Proportional to 13,262.61, 18,283.13 and 9,271.35

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Solution

The fourth proportional to 13,262.61, 18,283.13 and 9,271.35 is: 12,780.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.61 : 18,283.13 = 9,271.35 : x
  2. Step 2: Convert to fraction form
    13,262.61/18,283.13 = 9,271.35/x
  3. Step 3: Cross multiply
    13,262.61x = 18,283.13 × 9,271.35
  4. Step 4: Simplify right side
    13,262.61x = 169,509,297.33
  5. Step 5: Solve for x
    x = 169,509,297.33/13,262.61
  6. Step 6: Final answer
    x = 12,780.99

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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.