Home / 10,045.26-15,071.13-7,121.16

Finding the Fourth Proportional to 10,045.26, 15,071.13 and 7,121.16

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Solution

The fourth proportional to 10,045.26, 15,071.13 and 7,121.16 is: 10,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,045.26 : 15,071.13 = 7,121.16 : x
  2. Step 2: Convert to fraction form
    10,045.26/15,071.13 = 7,121.16/x
  3. Step 3: Cross multiply
    10,045.26x = 15,071.13 × 7,121.16
  4. Step 4: Simplify right side
    10,045.26x = 107,323,928.11
  5. Step 5: Solve for x
    x = 107,323,928.11/10,045.26
  6. Step 6: Final answer
    x = 10,684.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.