Home / 15,287.24-21,087.42-9,612.98

Finding the Fourth Proportional to 15,287.24, 21,087.42 and 9,612.98

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Solution

The fourth proportional to 15,287.24, 21,087.42 and 9,612.98 is: 13,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.24 : 21,087.42 = 9,612.98 : x
  2. Step 2: Convert to fraction form
    15,287.24/21,087.42 = 9,612.98/x
  3. Step 3: Cross multiply
    15,287.24x = 21,087.42 × 9,612.98
  4. Step 4: Simplify right side
    15,287.24x = 202,712,946.71
  5. Step 5: Solve for x
    x = 202,712,946.71/15,287.24
  6. Step 6: Final answer
    x = 13,260.27

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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.