Home / 15,003.44-20,705.40-8,717.84

Finding the Fourth Proportional to 15,003.44, 20,705.40 and 8,717.84

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Solution

The fourth proportional to 15,003.44, 20,705.40 and 8,717.84 is: 12,031.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.44 : 20,705.40 = 8,717.84 : x
  2. Step 2: Convert to fraction form
    15,003.44/20,705.40 = 8,717.84/x
  3. Step 3: Cross multiply
    15,003.44x = 20,705.40 × 8,717.84
  4. Step 4: Simplify right side
    15,003.44x = 180,506,364.34
  5. Step 5: Solve for x
    x = 180,506,364.34/15,003.44
  6. Step 6: Final answer
    x = 12,031.00

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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.