Home / 9,502.14-13,121.01-7,140.18

Finding the Fourth Proportional to 9,502.14, 13,121.01 and 7,140.18

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Solution

The fourth proportional to 9,502.14, 13,121.01 and 7,140.18 is: 9,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,502.14 : 13,121.01 = 7,140.18 : x
  2. Step 2: Convert to fraction form
    9,502.14/13,121.01 = 7,140.18/x
  3. Step 3: Cross multiply
    9,502.14x = 13,121.01 × 7,140.18
  4. Step 4: Simplify right side
    9,502.14x = 93,686,373.18
  5. Step 5: Solve for x
    x = 93,686,373.18/9,502.14
  6. Step 6: Final answer
    x = 9,859.50

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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.