Home / 14,280.06-21,421.50-4,918.85

Finding the Fourth Proportional to 14,280.06, 21,421.50 and 4,918.85

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Solution

The fourth proportional to 14,280.06, 21,421.50 and 4,918.85 is: 7,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.06 : 21,421.50 = 4,918.85 : x
  2. Step 2: Convert to fraction form
    14,280.06/21,421.50 = 4,918.85/x
  3. Step 3: Cross multiply
    14,280.06x = 21,421.50 × 4,918.85
  4. Step 4: Simplify right side
    14,280.06x = 105,369,038.17
  5. Step 5: Solve for x
    x = 105,369,038.17/14,280.06
  6. Step 6: Final answer
    x = 7,378.75

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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.