Home / 15,260.32-21,052.20-9,953.20

Finding the Fourth Proportional to 15,260.32, 21,052.20 and 9,953.20

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Solution

The fourth proportional to 15,260.32, 21,052.20 and 9,953.20 is: 13,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,260.32 : 21,052.20 = 9,953.20 : x
  2. Step 2: Convert to fraction form
    15,260.32/21,052.20 = 9,953.20/x
  3. Step 3: Cross multiply
    15,260.32x = 21,052.20 × 9,953.20
  4. Step 4: Simplify right side
    15,260.32x = 209,536,757.04
  5. Step 5: Solve for x
    x = 209,536,757.04/15,260.32
  6. Step 6: Final answer
    x = 13,730.82

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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.