Home / 13,056.73-18,018.30-7,088.40

Finding the Fourth Proportional to 13,056.73, 18,018.30 and 7,088.40

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Solution

The fourth proportional to 13,056.73, 18,018.30 and 7,088.40 is: 9,782.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.73 : 18,018.30 = 7,088.40 : x
  2. Step 2: Convert to fraction form
    13,056.73/18,018.30 = 7,088.40/x
  3. Step 3: Cross multiply
    13,056.73x = 18,018.30 × 7,088.40
  4. Step 4: Simplify right side
    13,056.73x = 127,720,917.72
  5. Step 5: Solve for x
    x = 127,720,917.72/13,056.73
  6. Step 6: Final answer
    x = 9,782.00

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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.