Home / 15,486.57-21,360.58-9,521.52

Finding the Fourth Proportional to 15,486.57, 21,360.58 and 9,521.52

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Solution

The fourth proportional to 15,486.57, 21,360.58 and 9,521.52 is: 13,133.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.57 : 21,360.58 = 9,521.52 : x
  2. Step 2: Convert to fraction form
    15,486.57/21,360.58 = 9,521.52/x
  3. Step 3: Cross multiply
    15,486.57x = 21,360.58 × 9,521.52
  4. Step 4: Simplify right side
    15,486.57x = 203,385,189.68
  5. Step 5: Solve for x
    x = 203,385,189.68/15,486.57
  6. Step 6: Final answer
    x = 13,133.00

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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.