Home / 15,412.31-21,257.54-9,362.52

Finding the Fourth Proportional to 15,412.31, 21,257.54 and 9,362.52

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Solution

The fourth proportional to 15,412.31, 21,257.54 and 9,362.52 is: 12,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.31 : 21,257.54 = 9,362.52 : x
  2. Step 2: Convert to fraction form
    15,412.31/21,257.54 = 9,362.52/x
  3. Step 3: Cross multiply
    15,412.31x = 21,257.54 × 9,362.52
  4. Step 4: Simplify right side
    15,412.31x = 199,024,143.40
  5. Step 5: Solve for x
    x = 199,024,143.40/15,412.31
  6. Step 6: Final answer
    x = 12,913.32

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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.