Home / 15,337.80-21,165.78-9,050.60

Finding the Fourth Proportional to 15,337.80, 21,165.78 and 9,050.60

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Solution

The fourth proportional to 15,337.80, 21,165.78 and 9,050.60 is: 12,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.80 : 21,165.78 = 9,050.60 : x
  2. Step 2: Convert to fraction form
    15,337.80/21,165.78 = 9,050.60/x
  3. Step 3: Cross multiply
    15,337.80x = 21,165.78 × 9,050.60
  4. Step 4: Simplify right side
    15,337.80x = 191,563,008.47
  5. Step 5: Solve for x
    x = 191,563,008.47/15,337.80
  6. Step 6: Final answer
    x = 12,489.60

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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.