Home / 15,374.04-21,214.40-8,659.50

Finding the Fourth Proportional to 15,374.04, 21,214.40 and 8,659.50

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Solution

The fourth proportional to 15,374.04, 21,214.40 and 8,659.50 is: 11,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.04 : 21,214.40 = 8,659.50 : x
  2. Step 2: Convert to fraction form
    15,374.04/21,214.40 = 8,659.50/x
  3. Step 3: Cross multiply
    15,374.04x = 21,214.40 × 8,659.50
  4. Step 4: Simplify right side
    15,374.04x = 183,706,096.80
  5. Step 5: Solve for x
    x = 183,706,096.80/15,374.04
  6. Step 6: Final answer
    x = 11,949.11

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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.