Home / 14,263.83-19,683.72-7,890.66

Finding the Fourth Proportional to 14,263.83, 19,683.72 and 7,890.66

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Solution

The fourth proportional to 14,263.83, 19,683.72 and 7,890.66 is: 10,888.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.83 : 19,683.72 = 7,890.66 : x
  2. Step 2: Convert to fraction form
    14,263.83/19,683.72 = 7,890.66/x
  3. Step 3: Cross multiply
    14,263.83x = 19,683.72 × 7,890.66
  4. Step 4: Simplify right side
    14,263.83x = 155,317,542.06
  5. Step 5: Solve for x
    x = 155,317,542.06/14,263.83
  6. Step 6: Final answer
    x = 10,888.91

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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.