Home / 13,271.79-18,315.88-7,304.77

Finding the Fourth Proportional to 13,271.79, 18,315.88 and 7,304.77

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Solution

The fourth proportional to 13,271.79, 18,315.88 and 7,304.77 is: 10,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.79 : 18,315.88 = 7,304.77 : x
  2. Step 2: Convert to fraction form
    13,271.79/18,315.88 = 7,304.77/x
  3. Step 3: Cross multiply
    13,271.79x = 18,315.88 × 7,304.77
  4. Step 4: Simplify right side
    13,271.79x = 133,793,272.49
  5. Step 5: Solve for x
    x = 133,793,272.49/13,271.79
  6. Step 6: Final answer
    x = 10,081.03

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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.