Home / 13,985.10-19,299.36-7,697.46

Finding the Fourth Proportional to 13,985.10, 19,299.36 and 7,697.46

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Solution

The fourth proportional to 13,985.10, 19,299.36 and 7,697.46 is: 10,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.10 : 19,299.36 = 7,697.46 : x
  2. Step 2: Convert to fraction form
    13,985.10/19,299.36 = 7,697.46/x
  3. Step 3: Cross multiply
    13,985.10x = 19,299.36 × 7,697.46
  4. Step 4: Simplify right side
    13,985.10x = 148,556,051.63
  5. Step 5: Solve for x
    x = 148,556,051.63/13,985.10
  6. Step 6: Final answer
    x = 10,622.45

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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.