Home / 13,130.71-19,703.57-4,809.63

Finding the Fourth Proportional to 13,130.71, 19,703.57 and 4,809.63

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Solution

The fourth proportional to 13,130.71, 19,703.57 and 4,809.63 is: 7,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.71 : 19,703.57 = 4,809.63 : x
  2. Step 2: Convert to fraction form
    13,130.71/19,703.57 = 4,809.63/x
  3. Step 3: Cross multiply
    13,130.71x = 19,703.57 × 4,809.63
  4. Step 4: Simplify right side
    13,130.71x = 94,766,881.38
  5. Step 5: Solve for x
    x = 94,766,881.38/13,130.71
  6. Step 6: Final answer
    x = 7,217.19

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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.