Home / 7,657.58-11,478.38-5,192.55

Finding the Fourth Proportional to 7,657.58, 11,478.38 and 5,192.55

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Solution

The fourth proportional to 7,657.58, 11,478.38 and 5,192.55 is: 7,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,657.58 : 11,478.38 = 5,192.55 : x
  2. Step 2: Convert to fraction form
    7,657.58/11,478.38 = 5,192.55/x
  3. Step 3: Cross multiply
    7,657.58x = 11,478.38 × 5,192.55
  4. Step 4: Simplify right side
    7,657.58x = 59,602,036.11
  5. Step 5: Solve for x
    x = 59,602,036.11/7,657.58
  6. Step 6: Final answer
    x = 7,783.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.