Home / 15,612.16-21,539.70-9,238.96

Finding the Fourth Proportional to 15,612.16, 21,539.70 and 9,238.96

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Solution

The fourth proportional to 15,612.16, 21,539.70 and 9,238.96 is: 12,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.16 : 21,539.70 = 9,238.96 : x
  2. Step 2: Convert to fraction form
    15,612.16/21,539.70 = 9,238.96/x
  3. Step 3: Cross multiply
    15,612.16x = 21,539.70 × 9,238.96
  4. Step 4: Simplify right side
    15,612.16x = 199,004,426.71
  5. Step 5: Solve for x
    x = 199,004,426.71/15,612.16
  6. Step 6: Final answer
    x = 12,746.76

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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.