Home / 8,988.30-13,412.15-8,054.36

Finding the Fourth Proportional to 8,988.30, 13,412.15 and 8,054.36

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Solution

The fourth proportional to 8,988.30, 13,412.15 and 8,054.36 is: 12,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.30 : 13,412.15 = 8,054.36 : x
  2. Step 2: Convert to fraction form
    8,988.30/13,412.15 = 8,054.36/x
  3. Step 3: Cross multiply
    8,988.30x = 13,412.15 × 8,054.36
  4. Step 4: Simplify right side
    8,988.30x = 108,026,177.14
  5. Step 5: Solve for x
    x = 108,026,177.14/8,988.30
  6. Step 6: Final answer
    x = 12,018.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.