Home / 12,810.40-19,217.40-4,488.51

Finding the Fourth Proportional to 12,810.40, 19,217.40 and 4,488.51

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Solution

The fourth proportional to 12,810.40, 19,217.40 and 4,488.51 is: 6,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.40 : 19,217.40 = 4,488.51 : x
  2. Step 2: Convert to fraction form
    12,810.40/19,217.40 = 4,488.51/x
  3. Step 3: Cross multiply
    12,810.40x = 19,217.40 × 4,488.51
  4. Step 4: Simplify right side
    12,810.40x = 86,257,492.07
  5. Step 5: Solve for x
    x = 86,257,492.07/12,810.40
  6. Step 6: Final answer
    x = 6,733.40

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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.