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Finding the Fourth Proportional to 6,999.95, 9,656.98 and 4,637.99

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Solution

The fourth proportional to 6,999.95, 9,656.98 and 4,637.99 is: 6,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.95 : 9,656.98 = 4,637.99 : x
  2. Step 2: Convert to fraction form
    6,999.95/9,656.98 = 4,637.99/x
  3. Step 3: Cross multiply
    6,999.95x = 9,656.98 × 4,637.99
  4. Step 4: Simplify right side
    6,999.95x = 44,788,989.22
  5. Step 5: Solve for x
    x = 44,788,989.22/6,999.95
  6. Step 6: Final answer
    x = 6,398.47

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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.