Home / 14,393.02-19,845.40-9,857.90

Finding the Fourth Proportional to 14,393.02, 19,845.40 and 9,857.90

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Solution

The fourth proportional to 14,393.02, 19,845.40 and 9,857.90 is: 13,592.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.02 : 19,845.40 = 9,857.90 : x
  2. Step 2: Convert to fraction form
    14,393.02/19,845.40 = 9,857.90/x
  3. Step 3: Cross multiply
    14,393.02x = 19,845.40 × 9,857.90
  4. Step 4: Simplify right side
    14,393.02x = 195,634,036.37
  5. Step 5: Solve for x
    x = 195,634,036.37/14,393.02
  6. Step 6: Final answer
    x = 13,592.28

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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.