Home / 15,412.55-21,268.51-9,038.25

Finding the Fourth Proportional to 15,412.55, 21,268.51 and 9,038.25

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Solution

The fourth proportional to 15,412.55, 21,268.51 and 9,038.25 is: 12,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.55 : 21,268.51 = 9,038.25 : x
  2. Step 2: Convert to fraction form
    15,412.55/21,268.51 = 9,038.25/x
  3. Step 3: Cross multiply
    15,412.55x = 21,268.51 × 9,038.25
  4. Step 4: Simplify right side
    15,412.55x = 192,230,087.91
  5. Step 5: Solve for x
    x = 192,230,087.91/15,412.55
  6. Step 6: Final answer
    x = 12,472.31

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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.