Home / 9,420.93-13,000.83-5,442.39

Finding the Fourth Proportional to 9,420.93, 13,000.83 and 5,442.39

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Solution

The fourth proportional to 9,420.93, 13,000.83 and 5,442.39 is: 7,510.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.93 : 13,000.83 = 5,442.39 : x
  2. Step 2: Convert to fraction form
    9,420.93/13,000.83 = 5,442.39/x
  3. Step 3: Cross multiply
    9,420.93x = 13,000.83 × 5,442.39
  4. Step 4: Simplify right side
    9,420.93x = 70,755,587.18
  5. Step 5: Solve for x
    x = 70,755,587.18/9,420.93
  6. Step 6: Final answer
    x = 7,510.47

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Half scale
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Double scale
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Similar ratio
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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.