Home / 13,103.60-19,663.50-5,312.48

Finding the Fourth Proportional to 13,103.60, 19,663.50 and 5,312.48

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Solution

The fourth proportional to 13,103.60, 19,663.50 and 5,312.48 is: 7,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.60 : 19,663.50 = 5,312.48 : x
  2. Step 2: Convert to fraction form
    13,103.60/19,663.50 = 5,312.48/x
  3. Step 3: Cross multiply
    13,103.60x = 19,663.50 × 5,312.48
  4. Step 4: Simplify right side
    13,103.60x = 104,461,950.48
  5. Step 5: Solve for x
    x = 104,461,950.48/13,103.60
  6. Step 6: Final answer
    x = 7,972.00

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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.