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Finding the Fourth Proportional to 6,442.95, 9,587.24 and 6,421.08

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Solution

The fourth proportional to 6,442.95, 9,587.24 and 6,421.08 is: 9,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,442.95 : 9,587.24 = 6,421.08 : x
  2. Step 2: Convert to fraction form
    6,442.95/9,587.24 = 6,421.08/x
  3. Step 3: Cross multiply
    6,442.95x = 9,587.24 × 6,421.08
  4. Step 4: Simplify right side
    6,442.95x = 61,560,435.02
  5. Step 5: Solve for x
    x = 61,560,435.02/6,442.95
  6. Step 6: Final answer
    x = 9,554.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.