Home / 6,898.95-9,521.43-5,135.58

Finding the Fourth Proportional to 6,898.95, 9,521.43 and 5,135.58

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Solution

The fourth proportional to 6,898.95, 9,521.43 and 5,135.58 is: 7,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.95 : 9,521.43 = 5,135.58 : x
  2. Step 2: Convert to fraction form
    6,898.95/9,521.43 = 5,135.58/x
  3. Step 3: Cross multiply
    6,898.95x = 9,521.43 × 5,135.58
  4. Step 4: Simplify right side
    6,898.95x = 48,898,065.48
  5. Step 5: Solve for x
    x = 48,898,065.48/6,898.95
  6. Step 6: Final answer
    x = 7,087.75

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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.