Home / 12,962.99-19,428.08-8,281.19

Finding the Fourth Proportional to 12,962.99, 19,428.08 and 8,281.19

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Solution

The fourth proportional to 12,962.99, 19,428.08 and 8,281.19 is: 12,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.99 : 19,428.08 = 8,281.19 : x
  2. Step 2: Convert to fraction form
    12,962.99/19,428.08 = 8,281.19/x
  3. Step 3: Cross multiply
    12,962.99x = 19,428.08 × 8,281.19
  4. Step 4: Simplify right side
    12,962.99x = 160,887,483.27
  5. Step 5: Solve for x
    x = 160,887,483.27/12,962.99
  6. Step 6: Final answer
    x = 12,411.30

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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.