Home / 11,292.14-15,585.74-7,515.45

Finding the Fourth Proportional to 11,292.14, 15,585.74 and 7,515.45

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Solution

The fourth proportional to 11,292.14, 15,585.74 and 7,515.45 is: 10,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,292.14 : 15,585.74 = 7,515.45 : x
  2. Step 2: Convert to fraction form
    11,292.14/15,585.74 = 7,515.45/x
  3. Step 3: Cross multiply
    11,292.14x = 15,585.74 × 7,515.45
  4. Step 4: Simplify right side
    11,292.14x = 117,133,812.11
  5. Step 5: Solve for x
    x = 117,133,812.11/11,292.14
  6. Step 6: Final answer
    x = 10,373.04

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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.