Home / 15,710.16-21,669.24-9,735.60

Finding the Fourth Proportional to 15,710.16, 21,669.24 and 9,735.60

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Solution

The fourth proportional to 15,710.16, 21,669.24 and 9,735.60 is: 13,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710.16 : 21,669.24 = 9,735.60 : x
  2. Step 2: Convert to fraction form
    15,710.16/21,669.24 = 9,735.60/x
  3. Step 3: Cross multiply
    15,710.16x = 21,669.24 × 9,735.60
  4. Step 4: Simplify right side
    15,710.16x = 210,963,052.94
  5. Step 5: Solve for x
    x = 210,963,052.94/15,710.16
  6. Step 6: Final answer
    x = 13,428.45

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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.