Home / 9,903.16-13,666.36-5,426.82

Finding the Fourth Proportional to 9,903.16, 13,666.36 and 5,426.82

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Solution

The fourth proportional to 9,903.16, 13,666.36 and 5,426.82 is: 7,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.16 : 13,666.36 = 5,426.82 : x
  2. Step 2: Convert to fraction form
    9,903.16/13,666.36 = 5,426.82/x
  3. Step 3: Cross multiply
    9,903.16x = 13,666.36 × 5,426.82
  4. Step 4: Simplify right side
    9,903.16x = 74,164,875.78
  5. Step 5: Solve for x
    x = 74,164,875.78/9,903.16
  6. Step 6: Final answer
    x = 7,489.01

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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.