Home / 10,131.40-13,987.65-6,548.23

Finding the Fourth Proportional to 10,131.40, 13,987.65 and 6,548.23

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Solution

The fourth proportional to 10,131.40, 13,987.65 and 6,548.23 is: 9,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.40 : 13,987.65 = 6,548.23 : x
  2. Step 2: Convert to fraction form
    10,131.40/13,987.65 = 6,548.23/x
  3. Step 3: Cross multiply
    10,131.40x = 13,987.65 × 6,548.23
  4. Step 4: Simplify right side
    10,131.40x = 91,594,349.36
  5. Step 5: Solve for x
    x = 91,594,349.36/10,131.40
  6. Step 6: Final answer
    x = 9,040.64

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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.