Home / 13,549.80-18,703.91-9,071.92

Finding the Fourth Proportional to 13,549.80, 18,703.91 and 9,071.92

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Solution

The fourth proportional to 13,549.80, 18,703.91 and 9,071.92 is: 12,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.80 : 18,703.91 = 9,071.92 : x
  2. Step 2: Convert to fraction form
    13,549.80/18,703.91 = 9,071.92/x
  3. Step 3: Cross multiply
    13,549.80x = 18,703.91 × 9,071.92
  4. Step 4: Simplify right side
    13,549.80x = 169,680,316.06
  5. Step 5: Solve for x
    x = 169,680,316.06/13,549.80
  6. Step 6: Final answer
    x = 12,522.72

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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.