Home / 7,653.78-11,478.16-2,973.46

Finding the Fourth Proportional to 7,653.78, 11,478.16 and 2,973.46

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Solution

The fourth proportional to 7,653.78, 11,478.16 and 2,973.46 is: 4,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.78 : 11,478.16 = 2,973.46 : x
  2. Step 2: Convert to fraction form
    7,653.78/11,478.16 = 2,973.46/x
  3. Step 3: Cross multiply
    7,653.78x = 11,478.16 × 2,973.46
  4. Step 4: Simplify right side
    7,653.78x = 34,129,849.63
  5. Step 5: Solve for x
    x = 34,129,849.63/7,653.78
  6. Step 6: Final answer
    x = 4,459.21

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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.