Home / 15,829.02-21,848.38-9,857.16

Finding the Fourth Proportional to 15,829.02, 21,848.38 and 9,857.16

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Solution

The fourth proportional to 15,829.02, 21,848.38 and 9,857.16 is: 13,605.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.02 : 21,848.38 = 9,857.16 : x
  2. Step 2: Convert to fraction form
    15,829.02/21,848.38 = 9,857.16/x
  3. Step 3: Cross multiply
    15,829.02x = 21,848.38 × 9,857.16
  4. Step 4: Simplify right side
    15,829.02x = 215,362,952.76
  5. Step 5: Solve for x
    x = 215,362,952.76/15,829.02
  6. Step 6: Final answer
    x = 13,605.58

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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.