Home / 13,157.02-18,148.08-7,848.28

Finding the Fourth Proportional to 13,157.02, 18,148.08 and 7,848.28

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Solution

The fourth proportional to 13,157.02, 18,148.08 and 7,848.28 is: 10,825.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.02 : 18,148.08 = 7,848.28 : x
  2. Step 2: Convert to fraction form
    13,157.02/18,148.08 = 7,848.28/x
  3. Step 3: Cross multiply
    13,157.02x = 18,148.08 × 7,848.28
  4. Step 4: Simplify right side
    13,157.02x = 142,431,213.30
  5. Step 5: Solve for x
    x = 142,431,213.30/13,157.02
  6. Step 6: Final answer
    x = 10,825.49

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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.