Home / 14,259.60-19,678.23-7,972.02

Finding the Fourth Proportional to 14,259.60, 19,678.23 and 7,972.02

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Solution

The fourth proportional to 14,259.60, 19,678.23 and 7,972.02 is: 11,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.60 : 19,678.23 = 7,972.02 : x
  2. Step 2: Convert to fraction form
    14,259.60/19,678.23 = 7,972.02/x
  3. Step 3: Cross multiply
    14,259.60x = 19,678.23 × 7,972.02
  4. Step 4: Simplify right side
    14,259.60x = 156,875,243.12
  5. Step 5: Solve for x
    x = 156,875,243.12/14,259.60
  6. Step 6: Final answer
    x = 11,001.38

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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.