Home / 13,931.88-19,225.26-7,962.76

Finding the Fourth Proportional to 13,931.88, 19,225.26 and 7,962.76

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Solution

The fourth proportional to 13,931.88, 19,225.26 and 7,962.76 is: 10,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.88 : 19,225.26 = 7,962.76 : x
  2. Step 2: Convert to fraction form
    13,931.88/19,225.26 = 7,962.76/x
  3. Step 3: Cross multiply
    13,931.88x = 19,225.26 × 7,962.76
  4. Step 4: Simplify right side
    13,931.88x = 153,086,131.32
  5. Step 5: Solve for x
    x = 153,086,131.32/13,931.88
  6. Step 6: Final answer
    x = 10,988.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.