Home / 15,040.16-20,756.48-9,071.46

Finding the Fourth Proportional to 15,040.16, 20,756.48 and 9,071.46

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Solution

The fourth proportional to 15,040.16, 20,756.48 and 9,071.46 is: 12,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.16 : 20,756.48 = 9,071.46 : x
  2. Step 2: Convert to fraction form
    15,040.16/20,756.48 = 9,071.46/x
  3. Step 3: Cross multiply
    15,040.16x = 20,756.48 × 9,071.46
  4. Step 4: Simplify right side
    15,040.16x = 188,291,578.06
  5. Step 5: Solve for x
    x = 188,291,578.06/15,040.16
  6. Step 6: Final answer
    x = 12,519.25

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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.