Home / 15,407.33-21,262.40-9,038.49

Finding the Fourth Proportional to 15,407.33, 21,262.40 and 9,038.49

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Solution

The fourth proportional to 15,407.33, 21,262.40 and 9,038.49 is: 12,473.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.33 : 21,262.40 = 9,038.49 : x
  2. Step 2: Convert to fraction form
    15,407.33/21,262.40 = 9,038.49/x
  3. Step 3: Cross multiply
    15,407.33x = 21,262.40 × 9,038.49
  4. Step 4: Simplify right side
    15,407.33x = 192,179,944.58
  5. Step 5: Solve for x
    x = 192,179,944.58/15,407.33
  6. Step 6: Final answer
    x = 12,473.28

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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.