Home / 15,285.24-21,097.38-9,320.19

Finding the Fourth Proportional to 15,285.24, 21,097.38 and 9,320.19

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Solution

The fourth proportional to 15,285.24, 21,097.38 and 9,320.19 is: 12,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.24 : 21,097.38 = 9,320.19 : x
  2. Step 2: Convert to fraction form
    15,285.24/21,097.38 = 9,320.19/x
  3. Step 3: Cross multiply
    15,285.24x = 21,097.38 × 9,320.19
  4. Step 4: Simplify right side
    15,285.24x = 196,631,590.10
  5. Step 5: Solve for x
    x = 196,631,590.10/15,285.24
  6. Step 6: Final answer
    x = 12,864.15

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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.