Home / 15,380.18-21,225.65-8,574.96

Finding the Fourth Proportional to 15,380.18, 21,225.65 and 8,574.96

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Solution

The fourth proportional to 15,380.18, 21,225.65 and 8,574.96 is: 11,834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.18 : 21,225.65 = 8,574.96 : x
  2. Step 2: Convert to fraction form
    15,380.18/21,225.65 = 8,574.96/x
  3. Step 3: Cross multiply
    15,380.18x = 21,225.65 × 8,574.96
  4. Step 4: Simplify right side
    15,380.18x = 182,009,136.45
  5. Step 5: Solve for x
    x = 182,009,136.45/15,380.18
  6. Step 6: Final answer
    x = 11,834.01

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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.