Home / 15,070.65-20,795.55-8,356.22

Finding the Fourth Proportional to 15,070.65, 20,795.55 and 8,356.22

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Solution

The fourth proportional to 15,070.65, 20,795.55 and 8,356.22 is: 11,530.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.65 : 20,795.55 = 8,356.22 : x
  2. Step 2: Convert to fraction form
    15,070.65/20,795.55 = 8,356.22/x
  3. Step 3: Cross multiply
    15,070.65x = 20,795.55 × 8,356.22
  4. Step 4: Simplify right side
    15,070.65x = 173,772,086.84
  5. Step 5: Solve for x
    x = 173,772,086.84/15,070.65
  6. Step 6: Final answer
    x = 11,530.50

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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.