Home / 18,005.12-26,985.36-14,068.16

Finding the Fourth Proportional to 18,005.12, 26,985.36 and 14,068.16

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Solution

The fourth proportional to 18,005.12, 26,985.36 and 14,068.16 is: 21,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.12 : 26,985.36 = 14,068.16 : x
  2. Step 2: Convert to fraction form
    18,005.12/26,985.36 = 14,068.16/x
  3. Step 3: Cross multiply
    18,005.12x = 26,985.36 × 14,068.16
  4. Step 4: Simplify right side
    18,005.12x = 379,634,362.14
  5. Step 5: Solve for x
    x = 379,634,362.14/18,005.12
  6. Step 6: Final answer
    x = 21,084.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.