Home / 7,973.90-11,005.35-4,990.94

Finding the Fourth Proportional to 7,973.90, 11,005.35 and 4,990.94

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Solution

The fourth proportional to 7,973.90, 11,005.35 and 4,990.94 is: 6,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.90 : 11,005.35 = 4,990.94 : x
  2. Step 2: Convert to fraction form
    7,973.90/11,005.35 = 4,990.94/x
  3. Step 3: Cross multiply
    7,973.90x = 11,005.35 × 4,990.94
  4. Step 4: Simplify right side
    7,973.90x = 54,927,041.53
  5. Step 5: Solve for x
    x = 54,927,041.53/7,973.90
  6. Step 6: Final answer
    x = 6,888.35

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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.