Home / 15,337.55-21,165.81-8,968.52

Finding the Fourth Proportional to 15,337.55, 21,165.81 and 8,968.52

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Solution

The fourth proportional to 15,337.55, 21,165.81 and 8,968.52 is: 12,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.55 : 21,165.81 = 8,968.52 : x
  2. Step 2: Convert to fraction form
    15,337.55/21,165.81 = 8,968.52/x
  3. Step 3: Cross multiply
    15,337.55x = 21,165.81 × 8,968.52
  4. Step 4: Simplify right side
    15,337.55x = 189,826,009.58
  5. Step 5: Solve for x
    x = 189,826,009.58/15,337.55
  6. Step 6: Final answer
    x = 12,376.55

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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.