Home / 15,327.95-21,148.68-8,950.49

Finding the Fourth Proportional to 15,327.95, 21,148.68 and 8,950.49

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Solution

The fourth proportional to 15,327.95, 21,148.68 and 8,950.49 is: 12,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.95 : 21,148.68 = 8,950.49 : x
  2. Step 2: Convert to fraction form
    15,327.95/21,148.68 = 8,950.49/x
  3. Step 3: Cross multiply
    15,327.95x = 21,148.68 × 8,950.49
  4. Step 4: Simplify right side
    15,327.95x = 189,290,943.11
  5. Step 5: Solve for x
    x = 189,290,943.11/15,327.95
  6. Step 6: Final answer
    x = 12,349.40

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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.