Home / 9,903.07-13,666.23-5,427.16

Finding the Fourth Proportional to 9,903.07, 13,666.23 and 5,427.16

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Solution

The fourth proportional to 9,903.07, 13,666.23 and 5,427.16 is: 7,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.07 : 13,666.23 = 5,427.16 : x
  2. Step 2: Convert to fraction form
    9,903.07/13,666.23 = 5,427.16/x
  3. Step 3: Cross multiply
    9,903.07x = 13,666.23 × 5,427.16
  4. Step 4: Simplify right side
    9,903.07x = 74,168,816.81
  5. Step 5: Solve for x
    x = 74,168,816.81/9,903.07
  6. Step 6: Final answer
    x = 7,489.48

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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.