Home / 15,607.20-21,538.74-8,533.56

Finding the Fourth Proportional to 15,607.20, 21,538.74 and 8,533.56

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Solution

The fourth proportional to 15,607.20, 21,538.74 and 8,533.56 is: 11,776.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607.20 : 21,538.74 = 8,533.56 : x
  2. Step 2: Convert to fraction form
    15,607.20/21,538.74 = 8,533.56/x
  3. Step 3: Cross multiply
    15,607.20x = 21,538.74 × 8,533.56
  4. Step 4: Simplify right side
    15,607.20x = 183,802,130.11
  5. Step 5: Solve for x
    x = 183,802,130.11/15,607.20
  6. Step 6: Final answer
    x = 11,776.75

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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.