Home / 7,727.90-10,656.47-6,612.53

Finding the Fourth Proportional to 7,727.90, 10,656.47 and 6,612.53

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Solution

The fourth proportional to 7,727.90, 10,656.47 and 6,612.53 is: 9,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.90 : 10,656.47 = 6,612.53 : x
  2. Step 2: Convert to fraction form
    7,727.90/10,656.47 = 6,612.53/x
  3. Step 3: Cross multiply
    7,727.90x = 10,656.47 × 6,612.53
  4. Step 4: Simplify right side
    7,727.90x = 70,466,141.22
  5. Step 5: Solve for x
    x = 70,466,141.22/7,727.90
  6. Step 6: Final answer
    x = 9,118.41

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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.