Home / 9,322.13-12,864.81-5,130.38

Finding the Fourth Proportional to 9,322.13, 12,864.81 and 5,130.38

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Solution

The fourth proportional to 9,322.13, 12,864.81 and 5,130.38 is: 7,080.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,322.13 : 12,864.81 = 5,130.38 : x
  2. Step 2: Convert to fraction form
    9,322.13/12,864.81 = 5,130.38/x
  3. Step 3: Cross multiply
    9,322.13x = 12,864.81 × 5,130.38
  4. Step 4: Simplify right side
    9,322.13x = 66,001,299.60
  5. Step 5: Solve for x
    x = 66,001,299.60/9,322.13
  6. Step 6: Final answer
    x = 7,080.07

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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.