Home / 19,764.52-29,636.48-7,280.16

Finding the Fourth Proportional to 19,764.52, 29,636.48 and 7,280.16

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Solution

The fourth proportional to 19,764.52, 29,636.48 and 7,280.16 is: 10,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.52 : 29,636.48 = 7,280.16 : x
  2. Step 2: Convert to fraction form
    19,764.52/29,636.48 = 7,280.16/x
  3. Step 3: Cross multiply
    19,764.52x = 29,636.48 × 7,280.16
  4. Step 4: Simplify right side
    19,764.52x = 215,758,316.24
  5. Step 5: Solve for x
    x = 215,758,316.24/19,764.52
  6. Step 6: Final answer
    x = 10,916.45

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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.