Home / 15,763.04-21,751.93-9,390.09

Finding the Fourth Proportional to 15,763.04, 21,751.93 and 9,390.09

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Solution

The fourth proportional to 15,763.04, 21,751.93 and 9,390.09 is: 12,957.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.04 : 21,751.93 = 9,390.09 : x
  2. Step 2: Convert to fraction form
    15,763.04/21,751.93 = 9,390.09/x
  3. Step 3: Cross multiply
    15,763.04x = 21,751.93 × 9,390.09
  4. Step 4: Simplify right side
    15,763.04x = 204,252,533.42
  5. Step 5: Solve for x
    x = 204,252,533.42/15,763.04
  6. Step 6: Final answer
    x = 12,957.69

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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.