Home / 9,421.80-14,123.40-5,263.80

Finding the Fourth Proportional to 9,421.80, 14,123.40 and 5,263.80

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Solution

The fourth proportional to 9,421.80, 14,123.40 and 5,263.80 is: 7,890.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.80 : 14,123.40 = 5,263.80 : x
  2. Step 2: Convert to fraction form
    9,421.80/14,123.40 = 5,263.80/x
  3. Step 3: Cross multiply
    9,421.80x = 14,123.40 × 5,263.80
  4. Step 4: Simplify right side
    9,421.80x = 74,342,752.92
  5. Step 5: Solve for x
    x = 74,342,752.92/9,421.80
  6. Step 6: Final answer
    x = 7,890.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.