Home / 14,165.48-19,548.10-7,877.80

Finding the Fourth Proportional to 14,165.48, 19,548.10 and 7,877.80

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Solution

The fourth proportional to 14,165.48, 19,548.10 and 7,877.80 is: 10,871.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.48 : 19,548.10 = 7,877.80 : x
  2. Step 2: Convert to fraction form
    14,165.48/19,548.10 = 7,877.80/x
  3. Step 3: Cross multiply
    14,165.48x = 19,548.10 × 7,877.80
  4. Step 4: Simplify right side
    14,165.48x = 153,996,022.18
  5. Step 5: Solve for x
    x = 153,996,022.18/14,165.48
  6. Step 6: Final answer
    x = 10,871.22

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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.