Home / 15,700.75-21,657.42-9,323.01

Finding the Fourth Proportional to 15,700.75, 21,657.42 and 9,323.01

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Solution

The fourth proportional to 15,700.75, 21,657.42 and 9,323.01 is: 12,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.75 : 21,657.42 = 9,323.01 : x
  2. Step 2: Convert to fraction form
    15,700.75/21,657.42 = 9,323.01/x
  3. Step 3: Cross multiply
    15,700.75x = 21,657.42 × 9,323.01
  4. Step 4: Simplify right side
    15,700.75x = 201,912,343.23
  5. Step 5: Solve for x
    x = 201,912,343.23/15,700.75
  6. Step 6: Final answer
    x = 12,860.04

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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.