Home / 21,368.95-29,486.61-11,808.26

Finding the Fourth Proportional to 21,368.95, 29,486.61 and 11,808.26

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Solution

The fourth proportional to 21,368.95, 29,486.61 and 11,808.26 is: 16,294.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.95 : 29,486.61 = 11,808.26 : x
  2. Step 2: Convert to fraction form
    21,368.95/29,486.61 = 11,808.26/x
  3. Step 3: Cross multiply
    21,368.95x = 29,486.61 × 11,808.26
  4. Step 4: Simplify right side
    21,368.95x = 348,185,647.04
  5. Step 5: Solve for x
    x = 348,185,647.04/21,368.95
  6. Step 6: Final answer
    x = 16,294.00

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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.